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 0xe0534dc16eafeb03a32268592d6123d5bf491a343abaf60ccc5a894e1f25042d. 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/ccd7fc50-1577-4355-9573-645173c702c8.json and https://artists.proofprofile.net/proofs/artist/ccd7fc50-1577-4355-9573-645173c702c8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Holst: The Planets, Op. 32 - Matthews: Pluto, the Renewer
Lord Berners: Ballet Music – Les sirènes & Cupid and Psyche Suite
Standford: Symphony No. 1, Cello Concerto & Prelude to a Fantasy
Cliffe & Erlanger: Violin Concertos (Hyperion Romantic Violin Concerto 10)
Bliss: Meditations on a Theme by John Blow - Metamorphic Variations
Frederick Delius - Hiawatha, Tone Poem for Orchestra
Stanford, C.V.: Symphonies, Vol. 4 (No. 1, Clarinet Concerto)
Alwyn: Concerto Grosso No. 1 / Pastoral Fantasia / 5 Preludes / Autumn Legend
Stanford: Symphonies, Vol. 3 (Nos. 3 and 6)
Stanford: Symphonies, Vol. 2 (Nos. 2 and 5)
Sullivan, A.: Pineapple Poll / Symphony in E Major, "Irish"
Gardner: Piano Concerto No. 1 / Symphony No. 1 / Midsummer Ale Overture
Stanford: Symphonies, Vol. 1 (Nos. 4 and 7)
Holst: Planets (The) / Delius: Over the Hills and Far Away
Alwyn, W.: Concerto for Oboe, Harp and Strings / Elizabethan Dances / The Innumerable Dance
Delius & Ireland: Piano Concertos (Hyperion Romantic Piano Concerto 39)
Vaughan Williams: Willow-Wood / the Sons of Light / Toward the Unknown Region
Constant Lambert: Romeo and Juliet & Other Works
Alwyn: Symphonies Nos. 2 and 5 / Harp Concerto, "Lyra Angelica"
DYSON: Symphony in G Major / Concerto da Chiesa / At the Tabard Inn
Bliss: Piano Concerto / Piano Sonata / Concerto for 2 Pianos
Delius: On Hearing the First Cuckoo in Spring
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 0x1196762255afec659335f57935ba0f2fec44ce2fe06615853f5d47ca9664bc2e. 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/HKI190330601.
3 Small Tone Poems: No. 1. Summer Evening
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x841bee30dfc9e9b8cb951cee87b9cbc611d2cd64f0c3b0adf58b2b48cbbff314. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/HKI190330602.
3 Small Tone Poems: No. 2. Winter Night, "Sleigh Ride"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f7c6a7aa6e258d2fc82596b037ab8a8737c97ff8a7365adbf8d8045ef65705f. 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/HKI190330603.
3 Small Tone Poems: No. 3. Spring Morning
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb20b99e7594a77dbe28ba5eca7eb9d9b3d5b09cbbf910501ffcfa6fae0d6f06. 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/HKI190330604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f5b4fe8870759f65cdb53e09233979d08a70476373c05002122db0c003c03d0. 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/HKI190330605.
A Village Romeo and Juliet: The Walk to the Paradise Garden
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ca8e63680f29c292058722c34d10956a7684705fb5ca15e9b8ebea9f95e7876. 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/HKI190330606.
2 Pieces for Small Orchestra: No. 1. On Hearing the First Cuckoo in Spring
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde21302f69710b751fb955b6de535584a3f76c117f88e18cc5567b048f7b3c0c. 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/HKI190330607.
2 Pieces for Small Orchestra: No. 2. Summer Night on the River
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2acdef5e2af00fcb636a68f88c2d1e510c590aa4bb66c26d6b93f0f6397e1502. 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/HKI190330608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa4fa99766640de4485024a2ecb458fe3d5a6e632b7fc0ca5327fbd6a2349771. 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/HKI190330609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2f121afbd6a8ab1baa0d52fceb46c0091c66e39daed8502cb5da38a08d867f4. 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/HKI190330610.
Moeran: Symphony in G Minor / Sinfonietta
Bax: Symphony No. 4, Nympholept & Overture to a Picaresque Comedy
Holst: Planets (The) / The Mystic Trumpeter, Op. 18
The Planets, Op. 32: I. Mars, the Bringer of War
Royal Scottish National Orchestra Chorus, Female members
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29e94e90f7f5e93164a778ef5a65ef18fd40a915a8b66f80b82803add7799573. 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/HKI190107601.
The Planets, Op. 32: IV. Jupiter, the Bringer of Jollity
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The Planets, Op. 32: VI. Uranus, the Magician
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3ed1be6d3316e514c2ab0fe1aa88aad0a99448dcd23d87111f01643e117626b. 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/HKI190107606.
The Planets, Op. 32: VII. Neptune, the Mystic -
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd0037b89ce7ed9502cbe53a246db745054468ae35216272786cd8d862c0820f. 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/HKI190107607.
The Planets, Op. 32: II. Venus, the Bringer of Peace
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd68b8dbd3c910b74779ff4b0a6b633928016798e9349d0eef7c2ae20b69582fc. Chain 2 (Bitcoin): anchored in block 960352 (2026-07-31T05:48:30Z), 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/HKI190107602.
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
The Planets, Op. 32: III. Mercury, the Winged Messenger
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea12fe85b9a9bc0a720b0043366eea76a0b2657c2f02f39fb54458c564cb1542. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/HKI190107603.
The Planets, Op. 32: V. Saturn, the Bringer of Old Age
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x237f4acd6bae795f999bfe9c064f26d61c2429e2ef948c524f2d609120d711b3. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/HKI190107605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f964e70ba7eceab49dcac0b9ddb4a6d9dbacb2e1089616c72ba8ceb7875866a. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/HKI190107608.
Bliss: Cello Concerto / Music for Strings / Two Studies
Spiegel im Spiegel (Version for Violin & Piano)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81ee3c49d06b77802b8f515b7479b53c9a6403c876b6d4d85f2499ffe33e90da. 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/USB8U1611850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9f6073f9b7d32fc0d3215005d828caaf39382a4438e0c18faf2fb436f7d43ac. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/USB8U1611876.
Serenade No. 13 in G Major, K. 525, "Eine kleine Nachtmusik": II. Romanze: Andante
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce0e719cfca95da0ebc40d6ac033333a217864965629cf43f4518b091a2acad0. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/HKI199274702.
Kinderszenen (Scenes of childhood), Op. 15: VII. Träumerei (Dreaming) (arr. for orchestra)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa09502309339c4b00de383cb4c34e1156acb97d6317d9cbc6d5b8dad7fa52ff6. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/HKI199827013.
Frösöblomster, Book 1, Op. 16: Frosoblomster (Froso-Flowers), Book 1, Op. 16: No. 6. Vid Froso kyrka (At Froso Church)
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07ac6816676aaeec181cb2a1237c54e9bd8185d1497575347f8df57a3b8efb36. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/HKI199708117.
Flute Sonata in E-Flat Major, BWV 1031: II. Siciliano (arr. D. Sosin for flute and harp)
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Fredmans epistlar (arr. J. Eriksson): Fredmans epistlar: No. 82. Vila vid denna kalla (arr. for orchestra)
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3898422a28b96e7e632cf4e68b0cca42bd1217fe7ca3b2140739a7bf2c66daa1. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/HKI190592906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x787240caeea387e23e1dcc431a4ff51b6ab8ebf3f8071b06b9fe724f99d98865. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/HKI199590802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a8e3afa7fc22e409671954eafa9796932a1a947102e970d6f476d188bdf20df. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/HKI199614201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf21352cc4de8564a51f052fd94a1d15c46c7572c13e41c97513714473c2cbf90. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/HKI199324605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ca4e2f5949aac246c17ab3b6b360570988a5fde2c65276fd42e25d35f95f1c6. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/HKI199590808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2e0ac9062b4f9f0bfe37c239d109cd2d9cd4fba200bc65e6bff7ad9f899ab4c. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/HKI190592903.
Consort Music: Consort Music: III. Ballad
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Pavane pour une infante defunte (version for piano)
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Clarinet Concerto in A Major, K. 622: II. Adagio
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe523d12910a7d0220a1ae50f763dacaee5fcf5aa5938f59151f31ebe57849180. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/HKI190592908.
Nocturnes, Op. 9: Nocturne No. 2 in E-Flat Major, Op. 9, No. 2
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Suite del recuerdo: Suite del recuerdo: I. Evocacion
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc48602a402960ce0de26e0dd9e6e331a75c44984caf4221d03faff16c64733d. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/HKI190592904.
Cello Concerto No. 1 in G Major: II. Romance: Andantino
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En vintersaga, Op. 18: En vintersaga (The Winter's Tale), Op. 18: IV. Epilogue
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Beatles Concerto Grosso No. 3: II. Eight Days a Week: Rondeau (in the style of J.S. Bach)
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Clarinet Quintet in A Major, K. 581: II. Larghetto
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Beatles Concerto Grosso No. 4: III. Goodnight
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Piano Sonata No. 14 in C-Sharp Minor, Op. 27, No. 2, "Moonlight": I. Adagio sostenuto
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Gustav Adolf II, Op. 49: Gustav II Adolf, Op. 49: VII. Elegy
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Gammal fabodpsalm fran Dalarna (Old Pastoral Hymn from Dalecarlia) (arr. J. Johansson for orchestra): 2 Sentimental Romances, Op. 28: No. 1. Gammal fabodpsalm fran Dalarna (Old Pastoral Hymn
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Saeterjentens Sondag, "The Herd-girls' Sunday"
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3 Gymnopédies (arr. for flute and harp): Gymnopedie No. 3 (arr. for flute and harp)
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Stardust (arr. L. Kallin): Stardust (trans. L. Kallin)
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Sången, Op. 44: Sangen, Op. 44: Interlude
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Mystic Classics - Visionary Choral and Orchestral Masterpieces
Symphony No. 3, Op. 36, "Symphony of Sorrowful Songs": II. Lento e largo - Tranquillissimo
Polish National Radio Symphony Orchestra
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Symphony No. 4, Op. 165: III. Andante espressivo
Royal Scottish Academy of Music and Drama Wind Orchestra
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Lord Berners: The Triumph of Neptune, L'uomo dai baffi & Other Works
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Holst: The Planets, Op. 32 & The Mystic Trumpeter, Op. 18
Thais: Thais, Act II: Meditation (Ladies in Lavender)
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Peer Gynt: Suite No. 2, Op. 55: IV. Solveigs sang (Solveig's Song)
CSSR State Philharmonic Orchestra, Kosice
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The Gadfly Suite, Op. 97a: VIII. Romance
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