Jana Boušková (born 27 September 1970) is a Czech harpist and pedagogue. She has been the principal harpist of the Czech Philharmonic since 2005. Boušková is also a professor at the Royal College of M
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 0xbe3a6bd1c2c8ae6c41be9a0a37812df3111f8e7ce028e7ff10aa2752674d5eb1. Chain 2 (Bitcoin): anchored in block 953778 (2026-06-15T11:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cfe0ef2b-7718-4185-8730-32e7c688e683.json and https://artists.proofprofile.net/proofs/artist/cfe0ef2b-7718-4185-8730-32e7c688e683.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Dvořák: String Sextet in A Major, Op. 48 / Schumann: 5 Stücke im Volkston, Op. 102; Fantasiestücke, Op. 73 / Reimann: Solo for Clarinet (Live)
Winds & Strings: Spohr, Ibert, Janacek & Widmann (Live)
Paul Freeman Introduces Exotic Concertos
Harp Concerto in B-Flat Major, HWV 294: I. Andante - allegro
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 0xf208384438d55c0dba7f2c79f3341c8ac2bc33e83387551e5cdd660d646736b3. 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/NLY331501254.
Harp Concerto in B-Flat Major, HWV 294: II. Larghetto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70f09cb2006d8bb04b575f9fc48e63aca7ddf2185f14e03be082a6d897f394d5. 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/NLY331501255.
Concerto for Flute and Harp in C Major, K. 299: I. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dba726754b9579006fbe9efcebdc13f8e6680042fbe0f063e06eada0f76018c. 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/NLY331501257.
Concerto for Flute and Harp in C Major, K. 299: III. Rondo. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc71c2d65f54c8e96062af13da76210340f40dbbc3dce1cf5fb082aad0b1e6bf0. 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/NLY331501259.
Harp Concerto in C in Major: II. Andante lento -
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Südwestdeutsches Kammerorchester Pforzheim
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Harp Concerto in A Major: III. Rondo. Allegretto
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b4ffeeac9f8cf56558c5a37b4c9eb55e56d67e525052e03fce12d9ef690ea86. 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/NLY331501270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44172c63b84ae03773c09c062f01956f8cbfea95d7545bb64f0ea55ffd38227a. 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/NLY331501274.
Harp Concerto in A Major: I. Allegro molto
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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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f144f78ef31ec2a08d5d6738ea9b4d60f8238e72f5017fdda0e6a2fbafef1f0. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/NLY331501268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84451ab1c234f0afd704a0096e8a02b7960d77be0bd19a674d0d5cd75f99f421. Chain 2 (Bitcoin): anchored in block 960435 (2026-07-31T16:33:26Z), 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/NLY331501269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7ddd7e5b8b6a22c5800c1a0196ef1d8ef2c471951c151b6321748c82ef3790c. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/NLY331501273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x557fe461d0c7c837868eeff4742edff1a948471f8a4cdd7c4fc9c514e6d93d00. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/NLY331501275.
Jana Boušková Plays Virtuoso Harp Encores
Granada - Fantasía espaňola - Arr. for Harp by Carlos Salzedo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9966756a3136f31b909ff85399fa62a5126f4267834a7df521b2352308dd6cc9. 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/CZA169800129.
Liebestraum (Notturno No. 3) - Arr. for Harp by Jana Boušková
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bd7891acba2f9e10849e3ca488f60b65aeaf3a2ada8a209d27f9bdc68238ddb. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/CZA169800126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x181bf666aeb33cf596be5aa5291fcafc0f753b5cea787c849de8d3082cdb40c6. 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/FRY220301694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd09f5c6d6ac9da39b20adea677c2f1c34c4b29d80633abb4cfb98b29108a6b5. 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/FRY220301696.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e76ee01475de75e3f086fd5b66ef1e8c6318c97013703589d88605e29054b0d. 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/FRY220301697.
Sonate pour flûte et harpe in C Minor: II. Andante
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea161ccf97fd8d13739479e82a3d7a80e00e43acd0986023e094ab6a0cb004e6. 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/FRY220301704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd536d3e5a38bbf0c64d2807e047fa6deb01b07fb7406c51097fc9b47db359d6. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/FRY220301695.
Concerto for Flute, Harp, and Orchestra in C Major, KV 299: I. Allegro - Arranged for Flute & Harp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa08eec404fb7fdbf097bc17a27d293aaf9a88b48868ac008d14db07335297518. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/FRY220301698.
Jean-Baptiste Krumpholtz: Concertos for Harp and Orchestra 1 (Nos 1, 2, 5)
Harp Concerto No. 5 in B-Flat Major: III. Rondo. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5e6f43c390740a380c87f460066a0a7b9a8a1e38f9c6a0f0001e7c1cf203ce1. 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/CZA169303459.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa61dd1f0c2618681af823edffa880ee6a4c0e95a46e3a4476f8e3fa5ca8f50a6. 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/CZA162200029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0eb3bc2053e73e19a53f9e49aef01a8b60c105e418ec3db3066e92cd379f2e72. 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/CZA168900396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf19a84844e7d82727889821ea47d0b3aa3f611a9f01a03415775c49cfff419a0. 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/CZA162200031.
Jak Křemílek a Vochomůrka vezli čtyři velké kameny
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa28cc9da01ccc6fd6cf1517ec8a96d68dbebb5e52504f6d1235f8d9770fad830. 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/CZA167200289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeef361548c39ea0449024743645f79be268d8f3bdfb4d957c4ba8e66bcfb89f8. 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/CZA162000017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64841e929071e0bbc189212790f188cfd6b0d075a8a52f499fb776d109a072ef. 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/CZA161801048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa49aa1a22ad1ef159743af6e9109509ec0210b430045d3c20398cc4370671c32. 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/CZA161440953.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39490dbce1d9475e567756050bd931d3602d96c69c05bce35d74078765b3731e. 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/CZA162100270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a69f7b844525ff5b80b739bbfb326c802cd88177328dc718e214c19cf1f7ca3. 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/CZA168400629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23d2db251443677135a3853bcf581d99311e2f5ed848d633a72531e9866a7e3c. 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/CZA168400628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc26cbbf70f8b9b636bae4663c0147e02770f466340d7d7387eb69706675c0a70. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/CZA540901602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb85647f03f37b6de1a2d9242f7a19ebb35f3bedc5ccc053a790ae81efabf07d1. 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/CZA659753690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6ea46415c28d4194279758905b524dc8bcd9a7c0afe0690beeb137ad500671b. 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/CZA659753691.
Sonatine, M. 40: I. Modéré - Arr. for Flute, Cello and Harp
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Sonatine, M. 40: II. Mouvement de menuet - Arr. for Flute, Cello and Harp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a186d5655e19b9a0a46a31513df3ccff35f35b145d130eaf2658594fd84e49e. 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/CZA169902011.
Introduction and Allegro for Harp, Flute, Clarinet and String Quartet, M. 46: I. Introduction
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Introduction and Allegro for Harp, Flute, Clarinet and String Quartet, M. 46: II. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50a89b3d09b28f67bc4edb1154c50e88789c38cfad46de2e5c285a61266e3164. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/CZA169902010.
Sonatine, M. 40: III. Animé - Arr. for Flute, Cello and Harp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc52c6fc13fd930798b459ddbebb2c93f33b93a707085354917b76fa62123bb57. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/CZA169903011.
Dances for Harp and Strings, L. 103: No. 1, Danse sacrée
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Dances for Harp and Strings, L. 103: No. 2, Danse profane
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Růže pro princeznu a další pohádky o princeznách
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Three Madrigals for Violin and Viola, H. 313 "Duo No. 1": I. Poco allegro
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Hindemith: Mathis der Maler, Concerto for Winds, Harp and Orchestra & Konzertmusik for Brass and Strings
Concertos for Harp by Dittersdorf, Albrechtsberger & Wagenseil