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 0x536cacaa863cc668b90ec5d71c0695b7846df2deab04d5e65fb2d4f3551d62ef. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9100e669-ca76-4a4b-af84-cba57bdeeda7.json and https://artists.proofprofile.net/proofs/artist/9100e669-ca76-4a4b-af84-cba57bdeeda7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Concerto Grosso in B Minor, Op. 6 No. 12, HWV 330: III. Aria. Larghetto e piano
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 0xa54c35a91a7783c2fbc6b7e91a88eca16b5bb4a0f8493f6845d40343c6f0c342. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/NLE422001130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fb72a8a63a57f1e9ade445ecda1017d12304da28a10a4ec57e2a983f47b2301. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/NLE422105533.
Spätburgunder: Celebrating Orchestral Music
Passaggio, eine barocke Alpenüberquerung
300 Jahre Jubiläum Friedrich II 'Der Grosse'
Maddalena ai piedi di Cristo: Maddalena ai piedi di Cristo: No. 35 Aria Maddalena "In lagrime stemprato il cor qui cade"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b0e0ad4b27ce66a1ef3d8f7d1d6d5e787de41dfda868417d9bae574cb2867f7. 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/FRZ149642070.
Tunder, F.: Ach, Herr Lass Deine Lieben Engelein / Reincken, J.A.: Suite No. 6 / Baltzar, T.: Airs
Vivaldi: Le Quattro Stagioni - Rebel: Les Eléments
Le quattro stagioni. Violin Concerto in G Minor No. 2, Op. 8, RV 315, "L'estate": I. Allegro non molto-Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1601b51b44dc4eb84db732cb78da91303ef0c759f78a62ebb4b37c7f3725644a. 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/FRZ140923150.
Le quattro stagioni. Violin Concerto in G Minor No. 2, Op. 8, RV 315, "L'estate": III. Presto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f598319e454e230a42529cc5e0fd554dd579cddc6faec33edf9e16616b0cc9e. 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/FRZ140923170.
Le quattro stagioni. Violin Concerto in F Minor No. 4, Op. 8, RV 297, "L'inverno": I. Allegro non molto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f8474c29df96b1754dbeceee5eb02938889e5859ad24e05310bf2b98f9ee8dd. 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/FRZ140923210.
Le quattro stagioni. Violin Concerto in F Minor No. 4, Op. 8, RV 297, "L'inverno": II. Largo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4c7d52e72b72544c308885a95b96a3237168ed137140237b3ca6a1863e422bc. 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/FRZ140923220.
Concerto pour Clavecin en Ré Mineur, BWV 1052: III. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8753bb5ddcebbdac89b8e1cea7bd43d963f179dc5e73dba51ad4c80f678ac1ee. 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/FRZ140101030.
Triple Concerto en La Mineur, BWV 1044: III. Tempo di alla breve
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ec41796003d7a02c74146d0948678a729d975847ebe542bea54294a8d180b68. 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/FRZ140101060.
Chamber Music (Baroque) - Frederick Iii / Schaffrath, C. / Bach, C.P.E. / Benda, F. / Janitsch, J.G. (Music From Sanssouci)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17a8b31746587690d6697affef0180aa9edeccdf066c0e5f88bcdab5c061fdde. 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/USB8U1011303.
Flute Sonata in E Minor: II. Allegro assai
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe91cf7d805cbacfcf7a53a326016586c9236ac2c5d6873dde910731ed39f95c2. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USB8U1011304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaca96016fbfc1ef8c08989c46386d9cc622640ac2719005e7be1f2e4012814b0. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USB8U1011305.
Duetto in D Minor, Op. 1: I. Poco allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4706e0e3b998c061afd4ea075a3980cdcf2e2f36e35074150126eb28155686ed. 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/USB8U1011306.
Viola da Gamba Sonata in C Major, Wq. 136, H. 558: II. Allegretto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x387defcd8c86c145a0a711821135c837f14ba25a77eecc1f8855c500a786b094. 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/USB8U1011313.
Violin Sonata in E-flat Major: III. Allegro assai
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61ca58f288b38a918aff60d595496396fcd01edf9b650802ce78503aceb9aacb. 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/USB8U1011317.
Quartet in G Major: II. Allegro ma non troppo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x494b52a180b063dd2c5245197d7db012508110b14782b257adc00770daadba08. 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/USB8U1011319.
Vivaldi: Sacro Furore - Stabat Mater, Nisi Dominus, Concerti
Concerto for strings in G Minor, RV 157: I. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa21dddf8dd80fe50cf8f69a9cb3ff89c18d5863158910c703e9ff2eb38e4b225. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/FR7JM2456010.
Concerto for strings in G Minor, RV 157: II. Largo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x359d7f194bfa5653da291b455f2a55c6bafe00d3ce379a9edb61b9a343d5b146. 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/FR7JM2456020.
Concerto for strings in G Minor, RV 157: III. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82d9ef8382adc89164d9a0a29ede7e336e41902976223438688e6b0abdc4e00c. 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/FR7JM2456030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe98a5fd8b36057cb12eac447c688dcf51c2ec0ea3aae3794348f661f64ebf29. 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/FR7JM2456040.
Nisi Dominus, RV 608: III. Surgite postquam sederitis
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb4e20d797c87ffa32865c62ef87252db298ba4c867e46b97024926e949bac0e. 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/FR7JM2456060.
Nisi Dominus, RV 608: IV. Cum dederit dilectis suis
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0709f33e49470d396afa25c9437d087dd00a897b09a186a0f2fa73bf7f344411. 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/FR7JM2456070.
Nisi Dominus, RV 608: VI. Beatus vir qui implevit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b7b21400121d01c3434c08149f06790b94252898cc4ba8a0fa07e65a9f8ff5a. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/FR7JM2456090.
Nisi Dominus, RV 608: VII. Gloria Patri et Filio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78b3f1ca5462439868490d9cd9fac947df4d7c0d1d643e3272b00de0a09e09e9. Chain 2 (Bitcoin): anchored in block 957820 (2026-07-13T07:54:01Z), 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/FR7JM2456100.
Nisi Dominus, RV 608: VIII. Sicut erat in principio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf3384e009df4586bbdcf5d233d43957880e23328969ac8fd1a1f08467d75b4a. 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/FR7JM2456110.
Sinfonia in B Minor, RV 169 "Al Santo Sepolcro": II. Allegro ma poco
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Stabat Mater, RV 621: I. Stabat Mater dolorosa
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Stabat Mater, RV 621: II. Cuius animam gementem
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Stabat Mater, RV 621: III. O quam tristis et afflicta
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53984df00747d13a91040a64b32346ab7775a4b61a848a7e7b6a5409b887ef96. 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/FR7JM2456170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb00541a480f05ba9973dfc2dbd4b7b43d837aeedd4e8f5c91d73d140dcc3232. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/FR7JM2456180.
Concerto in D Minor, RV 129 "Madrigalesco": III. Adagio
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In furore iustissimae irae, RV 626: II. Recitativo. Miserationum Pater piissime
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In furore iustissimae irae, RV 626: IV. Allegro. Alleluia
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Nisi Dominus, RV 608: II. Vanum est vobis ante lucem surgere
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Nisi Dominus, RV 608: V. Sicut sagittæ in manu potentis
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Vivaldi: In furore iustissimae irae, RV 626: I. Allegro. In furore iustissimae irae
Vivaldi: Nisi Dominus, RV 608: IV. Cum dederit dilectis suis
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Concerto E Minor for Violin, Strings & B.C.: III. Allegro
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfed09325ea5266fe98ff23bf8572b35ed8eb2fffb7a73729e7e1737eb1ee2282. 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/DES382308019.
Concerto grosso No. 1 in B-Flat Major, Op. 3, HWV 312: II. Largo
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Concerto grosso No. 2 in B-Flat Major, Op. 3, HWV 313: II. Largo
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Concerto grosso No. 2 in B-Flat Major, Op. 3, HWV 313: V. Gavotte
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Concerto grosso No. 3 in G Major, Op. 3, HWV 314: III. Adagio
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Concerto grosso in D Major, Op. 3 No. 6, HWV 317: II. Allegro
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Concerto "L'Olimpiade"in C Major: II. Adagio
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Concerto "L'Olimpiade"in C Major: III. Allegro
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Concerto in E Minor for Strings in E minor, RV 134: I. Allegro
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Concerto in E Minor for Strings in E minor, RV 134: II. Andante
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Concerto in E Minor for Strings in E minor, RV 134: III. Allegro
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Oboe Concerto in D minor, S. Z799: II. Adagio
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Sinfonia in D major, Schrank II/19/4: I. Allegro - Andante - Adagio
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Violin Concerto in B-Flat Major, RV 364: I. Allegro
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Violin Concerto in B-Flat Major, RV 364: III. Air
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Violin Concerto in B-Flat Major, RV 364: IV. Allegro
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Overture in D Major from "La Stravaganza", Op. 4: I. Allegro assai
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C.P.E. Bach: Symphonies - From Berlin to Hamburg
Symphony in C Major, H. 649, Wq. 174: I. Allegro assai
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Symphony in D Major, H. 651, Wq. 176: I. Allegro assai
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Symphony in G Major, H. 657, Wq. 182/1: I. Allegro di molto
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Symphony in G Major, H. 657, Wq. 182/1: III. Presto
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Symphony in C Major, H. 659, Wq. 182/3: III. Allegretto
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Symphony in B Minor, H. 661, Wq. 182/5: I. Allegretto
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Symphony in B Minor, H. 661, Wq. 182/5: II. Larghetto
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Symphony in B Minor, H. 661, Wq. 182/5: III. Presto
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Cello Concerto in G Minor, RV 416: III. Allegro
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Sinfonia no.12 in A minor, "La passione di Gesù Signor nostro": III. Adagio
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Sinfonia no.12 in A minor, "La passione di Gesù Signor nostro": IV. Allegro
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Cello Concerto in F major, RV 412: I. [No tempo]
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Concerto in C major, RV 114: II. Ciaccona
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Cello Concerto in E Minor, RV 409: II. Allegro - Adagio
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Sinfonia no.6 in G minor, "San Elena al Calvario": II. Adagio
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Sinfonia no.6 in G minor, "San Elena al Calvario": III. Allegro e spiritoso
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Cello Concerto in A minor, RV 419: I. Allegro
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Chamber Music (17Th-18Th Centuries) - Fischer, J. / Telemann, G.P. / Fux, J.J. / Marais, M. / Schmelzer, J.H.
C.P.E. Bach: Symphony in B Minor, H. 661, Wq. 182/5: II. Larghetto
Classical Music Capitals of the World: Prague