1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd737cdf0a2373224b9a595bae99926ab89d950c16a0e3a81f8c5f87bee77ad77. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a87ad2e3-da09-4e59-a00e-9733b1129779.json and https://artists.proofprofile.net/proofs/artist/a87ad2e3-da09-4e59-a00e-9733b1129779.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Mozart: Ballet Music from Les petits riens & Idomeneo; March in D Major
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d4a95fec1a98df10d4b93beb67aedc41f7d0cc3c1d61e8c95020d245b4a5230. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBBBA6450201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93979e1f68472c835133dbf451244403276543a937c7c696ab48b8673f8efdf4. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBBBA6450203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a20218460d36becb29019331bb3148b1199c29ae665a093e49c1970faf94070. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBBBA6450205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba78d0b21fa38abf20652a391fd6e3ba82c4777eddd9bcda79c6d936ea7a6ab1. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF076512740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfceadd95c9a6bd386cfa14ffaa6b0ea2b5e1c76183bbf0c70bcc32a70da0f131. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBBBA6650202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10129e1a3eaba07e9b54adc0fdbfeae9aa9c256413d5782ea3305d88191e9e88. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBBBA6650204.
Mozart: The Dances & Marches, Vol.3 (Complete Mozart Edition)
Mozart: The Dances & Marches, Vol.2 (Complete Mozart Edition)
Mozart: The Dances & Marches, Vol.1 (Complete Mozart Edition)
Mozart: Complete Edition Vol.2: Serenades, Dances & Marches
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2a1d864494a4e170bfab95b4875d2e2f28fa8ab947154f0bb4550d7ea9fc0ae. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508841201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc169c4f6ab982cfe17861942b7e57ae76c5e4d96d6ac01d3dc4f58ade41ba5d3. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508401101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45e3eb810f4f2684bdad2bf827b0d0531ae507382b07c6f5f049007c9693b2f3. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508841310.
Serenade in D Major, K. 203/189b: I. Andante maestoso - Allegro assai
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93c03ae211de007b33284ee71c9dc26c4b26190780298ea8ffac9b3c45c6495e. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508401102.
Serenade in D Major, K. 203/189b: II. Andante
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6177f2f5a0fd99d50c5e9a4e972d423b961de767bcf2ec8a5023899feb815c0. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508401103.
Divertimento No. 2 in D Major, K. 131: I. (Allegro)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeef3dad20be246afd6697816d9460bd012463058a3886522d51e5979c9d3d747. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508642001.
Serenade in D Major, K. 203/189b: III. Menuetto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe577fbe848a354488b6ff7be4cc7f424527b9a65966cfdee564832735b6f6975. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508401104.
Divertimento No. 2 in D Major, K. 131: III. Menuetto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4234934ffe8557663d8185e47178f5ca2eebde4b9a0236b328e6f8e25894f67. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508642003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5eae9207c43bb31e782c812e516fa02eeb3f9c14574ecc89d7ef11745ea62d87. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508841314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72bd9523c655097c3a42c0a2216ac3d5a4df3db6b1ea6fa1abe6473cbc60b9fe. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508841206.
Divertimento No. 2 in D Major, K. 131: IV. Allegretto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x024e0b41a91869b4733caed6ea18078cafaa0acd85632b4a3b09ee3846eedada. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508642004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d3f333142d0ddd74270136f14706b12abf9a3e409f065b6728cbf2bcb30f364. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508841207.
Serenade in D Major, K. 203/189b: VI. Andante
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7d1cda02189fcd0752751393fd45e41cde49fb25be1b1b17f2b5319f52b299d. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508401107.
Divertimento No. 2 in D Major, K. 131: V. Menuetto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf3a3e61902a30edaad29a47f8536aa2797b08a5dfe11295753396b8c62b4402. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508642005.
Divertimento No. 2 in D Major, K. 131: VI. Adagio - VII. Allegro Molto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x592f2d1c5b2cf81f1600c20ca7f73b8e70a2407dd02c3722d4a849a4f9fafba3. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508642006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50846f281d54f11d6de195cee9f536e16ecad2194f2fb88d7c3cf740e163a954. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508841317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcf9dda6c9f53c3d73fb6acf5893e9fc6f9aa3c7709e4aa0ab640eddcc2e650b. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508841209.
Cassation (Final-Musik) in G, K.63: 1. Marcia
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f768d458dc89c4befa0b502e98a749fe21cc99646f12ab7e5bc64fd43a8e870. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508841702.
Cassation in B-Flat Major, K. 99: IV. Menuet
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd36bbfab86aac3b6b8d52d13c982dae08daffe12a9ac8c4abd9a8e2f5316c0e. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508642010.
Cassation in B-Flat Major, K. 99: V. Andante
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa401145792033d27d7f5ce6cb29e965eb9f864b47b1796f21b89e84b1023aaf0. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508642011.
Cassation (Final-Musik) in G, K.63: 5. Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33d97e1943748c22ac6704dc723770710307a82cf9b26a688912da39dd60f84d. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508841706.
Cassation in B-Flat Major, K. 99: VI. Menuet
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe610481867690bd4ee64fbbffcaab9a072e1afe15f5c26b89e2944f4eab168d3. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508642012.
Cassation (Final-Musik) in G, K.63: 6. Menuetto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d367633d65f9e860106d478a1c74008d955871cedccb166243c0e41aaff5121. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508841707.
Cassation (Final-Musik) in G, K.63: 7. Finale (Allegro assai)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbddf681f47dd3d78cdea2df4024fb45f994314f4196a30b5528b959c9f9836ea. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508841708.
Mozart: Eine Kleine Nachtmusik; Serenata Notturna etc.
Symphony No. 29 in A, K.201: 1. Allegro moderato
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba5ea9914497645333ae8056b8d327157b8a9f83e3c12ad67787cdc774bd01eb. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF058402775.
Le nozze di Figaro, K.492 / Act 3: Cosa mi narri?...Che soave zeffiretto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcb8fe48bab1621cbb42666b37c533cd64ef31519e84b7fae8372f7fd89b3f87. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF056830234.
Mass in C minor, K.427 "Grosse Messe": 1. Kyrie
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e1f6498b4a9767ec8a68dc800ca96010f80d424e24c9ba769d9c2cd880de9c4. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA507101340.
Flute Quartet in D, K.285: 2. Adagio - (attacca)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e2677c2bf55c21439770ab60778fa0f1beb9b383efb66cdcb7232cee7d406c6. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA506900191.
Rondo in D Major for Piano and Orchestra, K. 382: II. Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8eb3c48a3c98e3cf488adee17dba254b68d256a2a1bffd4d33076143336d762e. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA509001105.
Academy of St Martin in the Fields Chorus
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x487ea79f17178fb1f393e07e1588785bdf2e5abb9e807f0521a46d0635617dd6. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA509300113.
Wiegenlied, K.350 - Arranged By Nicholas Ellis: Schlafe, mein Prinzchen, schlaf ein
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99caa7d55af6b8cf879037352267184258be70c3c9977bafbddbd6c6880c35b6. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN961300500.
Piano Sonata No. 12 in F Major, K. 332: II. Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93b1871be9052b9a8c04985ffa403ec64337ec9f66c969708757b328ee1807aa. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059003852.
Symphony No. 50 in D Major, K.161/163: 2. Andante
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8864d598abe11e840f66dd4c5e3a95ad6d4fd52b1c9b1d8133d67212022e13c4. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF077910272.
Requiem, KV 626: 6f. Lacrimosa (arr. piano)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc38efbb1130e5a67188b0806a8c751b2734722401006cf59b9c57a96bf1708ee. Chain 2 (Bitcoin): anchored in block 957043 (2026-07-07T13:52:39Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBUM71900822.
Divertimento No. 5 in D Major, K. 205: 3. Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed9ecb7dab293fe1288736723d3d2b91c465de35890f0eced5f363b20860aadb. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF077310473.
Quintet for Piano, Oboe, Clarinet, Horn, and Bassoon in E Flat Major, K. 452: 1. Largo -
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20f295059046336e6daa0cd9a8e835865b5cb0ea7c0551106ac86ed8b898e02a. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508640601.
Harmoniemusik from "Die Entführung aus dem Serail", K.384: 2. Hier soll ich dich denn sehen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca5b3dca01da670d07ea429e5e98d740ab59b71292720618bdfff8e5e44e3f63. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF078841702.
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Divertimento in D, K.334 - Arranged by David Overton: 3. Menuetto - Trio - Menuetto
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Clarinet Concerto in A Major, K622 (arr. piano)
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Violin Sonata in C Major, K. 403: II. Andante –
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Concert Rondo for Piano and Orchestra in D. K.382: 2. Adagio
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Andante for Flute and Orchestra in C, K.315
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Canon in D Major, P. 37/1 (Orch. Münchinger)
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The Nutcracker Suite, Op. 71a: Dance of the Sugar Plum Fairy – Waltz of the Flowers
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Serenade No. 13 in G Major, K. 525, "Eine kleine Nachtmusik": I. Allegro
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Symphony No. 25 in G Minor, K. 183: I. Allegro con brio
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Serenade No. 10 in B-Flat Major, K. 361, "Gran Partita": IV. Adagio
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Serenade No. 6 in D Major, K. 239, "Serenata Notturna": I. Marcia: Maestoso
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Mozart, W.A.: Piano Concertos Nos. 17 and 21
Klavierkonzert Nr. 21 C-Dur, K. 467, "Elvira Madigan": 2. Andante (Elvira Madigan): I. Allegro maestoso
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Klavierkonzert Nr. 21 C-Dur, K. 467, "Elvira Madigan": 2. Andante (Elvira Madigan): II. Andante
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Classic Moods - Albinoni, T.G. / Handel, G.F. / Marcello, A. / Vivaldi, A. / Bach, J.S. / Mozart, W.A. / Beethoven, L. Van / Haydn, F.J.
The 4 Seasons: Violin Concerto in F Major, Op. 8, No. 3, RV 293, "L'autunno" (Autumn): II. Adagio molto
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Peer Gynt Suite No. 1, Op. 46: I. Morning Mood
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Moment Musical No. 3 in F Minor, Op. 94, D. 780
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The Marriage of Figaro, K. 492: Cherubin's Song - "Voi Che Sapete" (Instrumental Version)
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Impromptu in A-Flat Major, Op. 90: No. 4, D. 899
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Piano Concerto No. 26 in D Major, K. 537, "Coronation": III. Allegretto
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Music for the Royal Fireworks, HWV 351: V. Menuets I and II
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Song Without Words, Op. 67: No. 4 in C Major, "Spinning Song"
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Rondo a Capriccio in G Major, Op. 129, "Rage Over a Lost Penny“
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The Magic Flute, K. 620, Act II: Papageno‘s Aria (Instrumental Version)
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Water Music Suite No. 2 in D Major, HWV 349: II. Alla Hornpipe
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Mandolin Concerto in C Major, RV 425: I. Allegro
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Horn Concerto No. 2 in E-Flat Major, K. 417: III. Rondo - Allegro
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Solomon, HWV 67, Act III: Arrival of the Queen of Sheba
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Piano Sonata No. 16 in C Major, K. 545, "Sonata Facile": I. Allegro
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Carmen Suite No. 2, Act II: VI. Danse Boheme
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Swan Lake, Op. 20, Act II: Scene No. 10, Moderato
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Waltz No. 1 in E-Flat Major, Op. 18, "Grande Valse Brillante"
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Piano Concerto No. 21 in C Major, K. 467 : II. Andante
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Piano Sonata No. 14 in C-Sharp Minor, Op. 27 : No. 2, "Moonlight Sonata"
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String Quintet in E Major, Op. 13, No. 5: 3. Minuet
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Bagatelle No. 25 in A Minor, WoO 59, "Für Elise"
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Classical Music for the Reader: Great Masterpieces for the Dedicated Reader
Handel: Serse - Ombra Mai Fu (Handel's Largo)
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Haydn: String Quartet In F, Op. 3/5, "Serenade" - Serenade
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Debussy: Suite Bergamasque, L 75 - Clair De Lune
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Classical Brain Power - Over 7 Hours of Music for Concentration, Productive Learning, Studying and Working
Classical Stress Relief: 99 Must-Have Classical Meditation & Relaxation
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Piano Sonata No. 14 in C-Sharp Minor, Op. 27 No. 2 "Moonlight Sonata": I. Adagio sostenuto
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Tosca, Act III: "E lucevan le stelle" (Instrumental Version)
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Catnap Classics: For Peaceful Sleep, Naps & Dreams
Suite bergamasque, L. 75: III. Clair de Lune - "Moonlight"
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Etude in E Major, Op. 10: No. 3, "Tristesse"
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Scenes of Childhood, Op. 15: VII. Träumerei
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Concerto for Piano, Strings and Continuo No. 1 in D Minor, BWV 1052: II. Adagio
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Piano Sonata No. 14 in C-Sharp Minor, Op. 27: No. 2, "Moonlight Sonata": I. Adagio Sostenuto
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A Midsummer Night's Dream, Op. 61: II. Notturno
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Capriccio Espagnol, Op. 34: II. Variations
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A Midsummer Night's Dream, Op. 61, Act II: Intermezzo (From "A Midsummer Night's Sex Comedy")
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Impromptu No. 3 in G-Flat Major, D. 899 (From "Gattaca")
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Trumpet Concerto in E-Flat Major, Hob. VIIe:1: III. Rondo. Allegro
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Serenade for Strings, Op. 48: II. Waltz. Moderato
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The Tale Of Tsar Saltan: 3. The Flight Of The Bumble-Bee
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Water Music Suite No. 1 in F, HWV 348: 3a. Allegro
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Hungarian Dance No. 5 in G Minor, WoO 1, No. 5
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Má Vlast (My Country): 2. Vltava (The Moldau)
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Die Walküre, WWV 86B - Concert version / Dritter Aufzug: The Ride of the Valkyries
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Nocturne No. 2 in E-Flat Major, Op. 9 No. 2
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Humoresque in G Flat Major, Op.101, No.7, B. 187
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Trumpet Concerto in E-Flat Major, Hob. VIIe:1: II. Andante
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Canon and Gigue in D Major, P. 37: I. Canon
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Serenade in G Major, K. 525 "Eine kleine Nachtmusik": 1. Allegro
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String Quintet in E Major, G. 275: III. Menuetto
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Nocturne No. 19 in E Minor, Op. 72, No. 1
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Consolations, S. 172: No. 3 in D-Flat Major. Lento placido
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Trumpet Concerto in E-Flat Major, Hob. VIIe:1: I. Allegro
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The Planets, Op. 32: I. Mars, the Bringer of War
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Serenade for Strings, Op. 48: IV. Finale (Tema russo). Andante – Allegro con spirito
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The Planets, Op. 32: IV. Jupiter, the Bringer of Jollity
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Clarinet Concerto No. 1 in F minor, Op. 73: 1. Allegro
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Serenade for Strings, Op. 48: III. Elegia. Larghetto elegiaco
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Symphony No. 5: IV. Adagietto. Sehr langsam
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Piano Concerto No. 3 in D Minor, Op. 30: I. Allegro ma non tanto
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Bravo! - Great Classical Recordings: Mozart
Divertimento in F, K.253: 3. Allegro assai
Bläservereinigung der Wiener Philharmoniker
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Contredanse in D Major. Das Donnerwetter, K. 534
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Requiem, K. 626 (Ed. Robbins Landon): IIIf. Lacrimosa - Live at Stephansdom, Vienna, 1991
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12 German Dances, K. 586: No. 11 in A Major
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'December' - A Season of Classics: Mozart
Andante And Five Variations For Piano Duet In G, K.501: Variation 4
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Andante And Five Variations For Piano Duet In G, K.501: Variation 5
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Symphony No. 41 In C, K.551 -: 4. Molto allegro
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'Sonata facile' and other works - Mozart
Piano Sonata No. 16 in C Major, K. 545 "Sonata facile": I. Allegro
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Piano Sonata No. 16 in C Major, K. 545 "Sonata facile": II. Andante
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Piano Sonata No. 16 in C Major, K. 545 "Sonata facile": III. Rondo. Allegretto
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Concerto for Flute, Harp, and Orchestra in C Major, K. 299: 2b. Andantino - Pt. 2
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Piano Concerto No. 21 in C Major, K. 467: 2b. Andante - Pt. 2
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12 Contredanses for Count Czernin, K.269b - orch. Erik Smith: No. 3 in C
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Piano Sonata No. 11 in A Major, K. 331: 3. Alla Turca (Allegretto)
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Violin Sonata in E-Flat Major, K. 481: III. Allegretto con variazioni: Var. 1
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The London Sketchbook, K. 15a-ss (Orch. Smith): [Contredanse] in F Major, K. 15h
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Piano Sonata No.14 in C Minor, K. 457: 2g. Adagio - Pt. 7
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Six German Dances, K.600: No. 5 in G (Trio: Der Kanarienvogel)
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Minuet in B Flat Major & Trio in E Flat Major, K15pp/qq
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Violin Sonata in F Major, K. 377: II. Andante con variazioni: Theme
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Violin Sonata in F Major, K. 377: II. Andante con variazioni: Var. 2
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Violin Sonata in F Major, K. 377: II. Andante con variazioni: Var. 5
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Violin Sonata in F Major, K. 377: II. Andante con variazioni: Var. 6
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Divertimento in B flat, K.270: 4. Presto
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"An Era of Classical": Mozart - Orchestral Works
6 Minuets K. 105 (attribution doubtful): No. 6 in G Major
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Serenade in B-Flat Major, K. 361 "Gran partita": VI. Tema con variazioni. e. Var. 4
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Andante And Five Variations For Piano Duet In G, K.501: Variation 2
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The London Sketchbook, K. 15a-ss (Orch. Smith): Presto in B-Flat Major, K. 15ll
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Six German Dances, K.571: No. 5 in B flat
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Piano Version of Ballet Music from Ascanio in Alba, K.Anh207: No. 2
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Piano Trio K.495a, Start of First Movement in G (Fragment)
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Les petits riens, Ballet, K. 299b: No. 4, (Vivo)
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2025 - A New Year Celebration with Mozart
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Variations sur un air national allemand, B.14: 1. Introduction. A capriccio
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Variations sur un air national allemand, B.14: 2. Theme. Andantino
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Variations sur un air national allemand, B.14: 3. Variation I. Elegantemente
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Variations sur un air national allemand, B.14: 4. Variation II. Scherzando
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Variations sur un air national allemand, B.14: 5. Variation III. Tranquillement
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Variations sur un air national allemand, B.14: 6. Variation IV. Meno mosso - Tempo di Valse
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2-Part Fugues, Hess 236: No. 1 in D Minor
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2-Part Fugues, Hess 236: No. 2 in E Minor
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2-Part Fugues, Hess 236: No. 3 in F Major
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2-Part Fugues, Hess 236: No. 4 in B-Flat Major
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2-Part Fugues, Hess 236: No. 5 in D Minor
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6 Variations for Violin and Piano on "Hélas, j'ai perdu mon amant", K. 360: I. Theme. Andantino
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6 Variations for Violin and Piano on "Hélas, j'ai perdu mon amant", K. 360: Var. 1
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6 Variations for Violin and Piano on "Hélas, j'ai perdu mon amant", K. 360: Var. 2
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6 Variations for Violin and Piano on "Hélas, j'ai perdu mon amant", K. 360: Var. 3
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6 Variations for Violin and Piano on "Hélas, j'ai perdu mon amant", K. 360: Var. 4
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6 Variations for Violin and Piano on "Hélas, j'ai perdu mon amant", K. 360: Var. 5. Maggiore
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6 Variations for Violin and Piano on "Hélas, j'ai perdu mon amant", K. 360: Var. 6. Minore
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Sonata For Piano Duet In C, K. 19d: 1. (Allegro)
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Sonata For Piano Duet In C, K. 19d: 2. Menuetto
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Sonata For Piano Duet In C, K. 19d: 3. Rondo (Allegretto)
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Sonata For Piano Duet In D, K. 381: 1. Allegro
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Sonata For Piano Duet In D, K. 381: 2. Andante
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Sonata For Piano Duet In D, K. 381: 3. Allegro molto
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Waltz No. 17 in E Flat Major, Op. Posth. B.46
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Sonata For Piano Duet In B Flat, K. 358: 1. Allegro
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Sonata For Piano Duet In B Flat, K. 358: 2. Adagio
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Sonata For Piano Duet In B Flat, K. 358: 3. Molto presto
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String Quartet No. 16 in F Major, Op. 135: I. Allegretto
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String Quartet No. 16 in F Major, Op. 135: II. Vivace
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"20th Century Recordings" - Mozart & Haydn
Divertimento in B-Flat Major, K. 137: III. Allegro assai
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String Quartet in D Major, Op. 71 No. 2: III. Menuetto. Allegro
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Symphony No. 24 in B-Flat Major, K. 182: III. Allegro
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String Quartet in D Minor, Op. 42: II. Menuetto. Allegro – Trio
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Divertimento in D Major, K. 136: I. Allegro
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Nine Variations in D, K.573 on a minuet by J.P. Duport: 7b. Variation VI - Pt. 2
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Six Contredanses K. 462: No. 4 in D Major
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8 Variations on ‘Dieu d'amour’ from ‘Les mariages samnites’ by Grétry in F, K.352: 6b. Variation V - Pt. 2
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"A Soundtrack for Springtime" - Classical Seasons
"18th Century Composers" - Mozart & Beethoven
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Contredanse in G Major. Les filles malicieuses, K. 610
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12 German Dances, K. 586: No. 7 in G Major
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12 German Dances, K. 586: No. 10 in F Major
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3 German Dances, K. 605: No. 2 in G Major
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Les petits riens, K.app.10 (ballet): No. 15 Gavotte gracieuse
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6 German Dances, K. 600: No. 2 in F Major
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12 German Dances, K. 586: No. 1 in C Major
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12 Variations on "Ah, vous dirai-je maman", K. 265: Theme “Twinkle, Twinkle, Little Star”
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12 Variations on "Ah, vous dirai-je maman", K. 265: Var. 1
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12 Variations on "Ah, vous dirai-je maman", K. 265: Var. 2
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12 Variations on "Ah, vous dirai-je maman", K. 265: Var. 3
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12 Variations on "Ah, vous dirai-je maman", K. 265: Var. 4
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12 Variations on "Ah, vous dirai-je maman", K. 265: Var. 5
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12 Variations on "Ah, vous dirai-je maman", K. 265: Var. 6
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12 Variations on "Ah, vous dirai-je maman", K. 265: Var. 7
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12 Variations on "Ah, vous dirai-je maman", K. 265: Var. 8
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12 Variations on "Ah, vous dirai-je maman", K. 265: Var. 9
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12 Variations on "Ah, vous dirai-je maman", K. 265: Var. 10
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12 Variations on "Ah, vous dirai-je maman", K. 265: Var. 11
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12 Variations on "Ah, vous dirai-je maman", K. 265: Var. 12
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12 German Dances, K. 586: No. 4 in F Major
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Piano Sonata No. 25 in G, Op. 79: 3. Vivace
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Piano Sonata No. 14 in C-Sharp Minor, Op. 27 No. 2 "Moonlight Sonata": III. Presto agitato
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24 Variations on "Venni Amore" in D Major, WoO 65: Variation I
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24 Variations on "Venni Amore" in D Major, WoO 65: Variation II
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24 Variations on "Venni Amore" in D Major, WoO 65: Variation III
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24 Variations on "Venni Amore" in D Major, WoO 65: Variation VI
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11 Bagatelles, Op. 119: 7. Allegro ma non troppo
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Piano Sonata No. 14 in C-Sharp Minor, Op. 27 No. 2 "Moonlight": II. Allegretto
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7 Variations on "Bei Männern, welche Liebe fühlen", for Cello and Piano, WoO 46: Thema. Andante
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7 Variations on "Bei Männern, welche Liebe fühlen", for Cello and Piano, WoO 46: Variation I
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7 Variations on "Bei Männern, welche Liebe fühlen", for Cello and Piano, WoO 46: Variation II
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7 Variations on "Bei Männern, welche Liebe fühlen", for Cello and Piano, WoO 46: Variation III
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7 Variations on "Bei Männern, welche Liebe fühlen", for Cello and Piano, WoO 46: Variation IV
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7 Variations on "Bei Männern, welche Liebe fühlen", for Cello and Piano, WoO 46: Variation V. Si prenda il tempo un poco più vivace
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7 Variations on "Bei Männern, welche Liebe fühlen", for Cello and Piano, WoO 46: Variation VI. Adagio
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7 Variations on "Bei Männern, welche Liebe fühlen", for Cello and Piano, WoO 46: Variation VII. Allegro, ma non troppo
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Variations on Mozart's "La ci darem la mano": Variation 6 (Lento espressivo)
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Violin Concerto in D Major, Op. 61: 3. Rondo. Allegro - Excerpt
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March for Military Music in F Major, WoO 18
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12 German Dances, WoO 8: 7. German Dance in C Major
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12 Variations on "Ein Mädchen oder Weibchen" for Cello and Piano, Op. 66: Theme. Allegretto
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12 Variations on "Ein Mädchen oder Weibchen" for Cello and Piano, Op. 66: Variation I
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12 Variations on "Ein Mädchen oder Weibchen" for Cello and Piano, Op. 66: Variation II
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12 Variations on "Ein Mädchen oder Weibchen" for Cello and Piano, Op. 66: Variation III
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12 Variations on "Ein Mädchen oder Weibchen" for Cello and Piano, Op. 66: Variation IV
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12 Variations on "Ein Mädchen oder Weibchen" for Cello and Piano, Op. 66: Variation V
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12 Variations on "Ein Mädchen oder Weibchen" for Cello and Piano, Op. 66: Variation VII
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12 Variations on "Ein Mädchen oder Weibchen" for Cello and Piano, Op. 66: Variation VIII
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12 Variations on "Ein Mädchen oder Weibchen" for Cello and Piano, Op. 66: Variation IX
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12 Variations on "Ein Mädchen oder Weibchen" for Cello and Piano, Op. 66: Variation X. Adagio
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12 Variations on "Ein Mädchen oder Weibchen" for Cello and Piano, Op. 66: Variation XI. Poco Adagio, quasi Andante
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12 Variations on "Ein Mädchen oder Weibchen" for Cello and Piano, Op. 66: Variation XII. Allegro
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Divertimento No. 15 in B Flat Major, K.287: 2. Tema con variazioni: Andante grazioso
Academy of St. Martin in the Fields Chamber Ensemble
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Divertimento No. 15 in B Flat Major, K.287: Variation VI
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Violin Sonata in G Major, K. 379: II. Tema con variazioni: Theme. Andantino cantabile
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Violin Sonata in G Major, K. 379: II. Tema con variazioni: Var. 2
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Violin Sonata in G Major, K. 379: II. Tema con variazioni: Theme. Allegretto – Coda
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"An Evening of Classical" - Chopin & More
Waltz No. 6 in D flat, Op. 64 No. 1 -"Minute"
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Prelude in A-Flat Major, KK IVb/7. Presto con leggierezza
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Mazurka No. 4 in E-Flat Minor, Op. 6 No. 4. Presto ma non troppo
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24 Préludes, Op. 28, C. 166-189: No. 3 Vivace in G Major, C. 168 - Live
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24 Préludes, Op. 28, C. 166-189: No. 5 Molto allegro in D Major, C. 170 - Live
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24 Préludes, Op. 28, C. 166-189: No. 14 Allegro in E-Flat Minor, C. 179 - Live
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24 Préludes, Op. 28 - Arr. Hirschfelder: Prélude No. 15 in D flat, Op. 28, No. 15 - "Raindrop"
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Waltz No. 19 In A Minor, Op. Posth. B. 150 - Edit
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24 Variations on "Venni Amore" in D Major, WoO 65: Variation XVI
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The Creatures of Prometheus, Op. 43: No. 11 Coro di Gioja. Andante
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12 Variations On "Ein Mädchen oder Weibchen" For Cello And Piano, Op. 66: Variation VI
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Piano Piece in C Major, Kafka f. 47v (Staves 5-8)
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12 Variations On "See the conquering hero comes" For Cello And Piano, WoO 45: Variation VII
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The Creatures of Prometheus, Op. 43: No. 11 Coro di Gioja. Andante - Live In Utrecht / 1995
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6 Ländler for 2 Violins and Bass, WoO 15: No. 1 in D Major
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Serenade In G, K.525 "Eine kleine Nachtmusik": 1. Allegro - Excerpt
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Symphony No. 40 In G Minor, K.550: 1. Molto allegro - Excerpt
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Eine kleine Nachtmusik, K. 525: II. Romance. Andante
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Horn Concerto No. 4 in E-Flat Major, K. 495: II. Romance. Andante cantabile
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Piano Concerto No. 23 in A Major, K. 488: II. Adagio
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Three German Dances, K.605: No. 3 in C, Trio "Die Schlittenfahrt"
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'Jupiter' - Symphony No. 41 and other works
Symphony No. 41 in C Major, K. 551 "Jupiter": II. Andante cantabile
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Symphony No. 41 in C Major, K. 551 "Jupiter": III. Menuetto. Allegretto
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Symphony No. 41 in C Major, K. 551 "Jupiter": IV. Finale. Molto allegro
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The London Sketchbook, K. 15a-ss (Orch. Smith): [Allegro] in F Major, K. 15a
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The London Sketchbook, K. 15a-ss (Orch. Smith): [Minuet] in F Major, K. 15f
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The London Sketchbook, K. 15a-ss (Orch. Smith): [Rondo. Allegro moderato] in D Major, K. 15d
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The London Sketchbook, K. 15a-ss (Orch. Smith): [Siciliana. Andantino] in D Minor, K. 15u
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The London Sketchbook, K. 15a-ss (Orch. Smith): [Allegro] in F Major, K. 15v
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The London Sketchbook, K. 15a-ss (Orch. Smith): [Cotillon. Allegro] in B-Flat Major, K. 15gg
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The London Sketchbook, K. 15a-ss (Orch. Smith): [Allegro assai] in E-Flat Major, K. 15kk
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Andante And Five Variations For Piano Duet In G, K.501: Variation 3
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Andante And Five Variations For Piano Duet In G, K.501: Variation 1
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5 Contredanses "Non più andrai", K. 609: No. 3 in D Major
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Divertimento in D Major, K. 131: II. Adagio
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