Stephan Schreckenberger (born 16 February 1955) is a German bass singer and conductor, especially in the field of early music. From 2003, he has been a teacher at the Hochschule für Musik und Darstell
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 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 0xb233e0d790f92f6ba78ebbb1ddc2767da971762c8a87eec6c9b6cad1e0a8b01f. Chain 2 (Bitcoin): anchored in block 953817 (2026-06-15T18:10:31Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f8dc389d-97ef-429e-955a-bce0810cabd3.json and https://artists.proofprofile.net/proofs/artist/f8dc389d-97ef-429e-955a-bce0810cabd3.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Telemann: Passions-Oratorium & 2 Kantaten
Telemann: Ich hoffete aufs Licht, TWV 4:13
Telemann, G.P.: Aus Der Lowengrube Errettete Daniel (Der) [Oratorio]
O holder Tag, erwünschte Zeit, BWV 210: No. 1, O holder Tag, erwunschte Zeit
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 0x1b78f3f2816ea894526146a7b073ac709249f406f1696118ead899979f72929b. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEAEO0411010 — a six-check JSON result.
O holder Tag, erwünschte Zeit, BWV 210: No. 2, Spielet, ihr beseelten Lieder
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d2d7c4fae1153d0bd267810594b3f87f4c2512e77ff0a1ce83db2f730c736cf. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEAEO0411020 — a six-check JSON result.
O holder Tag, erwünschte Zeit, BWV 210: No. 3, Doch haltet ein, ihr muntern Saiten
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60127dfb9fe274f6eab597c235c08070e18ba5c5703162d3980c9bea40b63cf6. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEAEO0411030 — a six-check JSON result.
O holder Tag, erwünschte Zeit, BWV 210: No. 4, Ruhet hie, matte Tone
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27d5c7cd76236718251da6d8f5b19371875c5c0b78b151750bb11803738b10a1. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEAEO0411040 — a six-check JSON result.
O holder Tag, erwünschte Zeit, BWV 210: No. 6, Schweigt, ihr Floten, schweigt, ihr Tone
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b414ba882d6a4a59b3cdbc36f0561e3c5c8d900077153afdcf24fe31b9fbfe1. Chain 2 (Bitcoin): anchored in block 960389 (2026-07-31T10:20:10Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEAEO0411060 — a six-check JSON result.
Was mir behagt, ist nur die muntre Jagd, BWV 208 "Hunt Cantata": No. 9, Schafe können sicher weiden
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f8a106b7824dd9a320a6506b491c62fa0ee33aa8487ad900b8d7236963d1ba5. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEAET1271100 — a six-check JSON result.
Schweigt stille, plaudert nicht, BWV 211 "Coffee Cantata": No. 1, Schweigt stille
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c2ab0a3fbd9be5a136cd2a988cde969fedb679ed93809643ba83da25cf73e19. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEAEO0411110 — a six-check JSON result.
Vespro Della Beata Vergine: I, Intonatio Deus in adjutorium
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e18898eb83fcbdcc8cfd0873a0b656acd332a677d8eb19d9b565f5eff72d94f. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEAC69605001 — a six-check JSON result.
Vespro Della Beata Vergine: II, Psalmus 109 Dixit Dominus
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbe8cb5ad189fe88f12182d12e01f04661a81892ec2f94558596210bac8c15dc. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEAC69605002 — a six-check JSON result.
Handel / Buxtehude / Bach, J.S.: Baroque Arias, Volume 2
Gott ist mein Konig, BWV 71: Aria. Durch machtige Kraft (Alto)
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Gottes Zeit ist die allerbeste Zeit, BWV 106 "Actus tragicus": Aria. In deine Hande befehle ich meinen Geist (Alto)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0828702d22a3b4e1536db8f286bb025947c8b97235fd68f8b48fd6d68f2b4e54. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEAEH9581180 — a six-check JSON result.
Telemann: Der Tag des Gerichts (The Day of Judgements)
Telemann, G.P.: Herr Ist Konig (Der) / Donnerode
Ahle: Neu-Gepflanzter Thuringischer Lustgarten (Excerpts)
Magnificat in E-Flat Major, BWV 243a: I. Magnificat anima mea (Chorus)
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Magnificat in E-Flat Major, BWV 243a: III. Quia fecit mihi magna (Bass)
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Magnificat in E-Flat Major, BWV 243a, Appendix: II. Freut euch (Chorus)
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Ein Lämmlein geht und trägt die Schuld, GraunWV B:VII:4, Pt. 1: No. 3, So steigt mein Jesus in Geduld
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Ein Lämmlein geht und trägt die Schuld, GraunWV B:VII:4, Pt. 1: No. 5, Ich weiß, was die ihr selbstgelaßene Vernunft
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0740094e6e7ba394d39752f20f13de8f59f862c3e00acee735843b8a78a0a031. Chain 2 (Bitcoin): anchored in block 960330 (2026-07-31T00:58:21Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEC629000517 — a six-check JSON result.
Ein Lämmlein geht und trägt die Schuld, GraunWV B:VII:4, Pt. 1: No. 8, Da dich dein Jünger selbst verrät
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75ca9861cb56a8b282d10bdc2cec6479779f38b94c2aafb214239ae2cc30fb70. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEC629000520 — a six-check JSON result.
Trumpet Concerto in A-Flat Major (Transcribed by Ivan Jetvic from Oboe Concerto in C Major, K. 314): I. Allegro aperto (Cadenza: André)
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Trumpet Concerto in A-Flat Major (Transcribed by Ivan Jetvic from Oboe Concerto in C Major, K. 314): III. Rondo allegretto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1db6ffb949e562e4fe1697ea1d0735f222e9bad0ee73d2726c0370a52fc1940d. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC9005174 — a six-check JSON result.
Piano Concerto No. 11 in D Major, Hob. XVIII:11: I. Vivace
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Der Messias, K. 572, Pt. 1: No. 3, Chor. Denn die Herrlichkeit Gottes des Herrn
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Der Messias, K. 572, Pt. 1: No. 2, Arie. Alle Tale macht hoch und erhaben
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Der Messias, K. 572, Pt. 1: No. 4, Accompagnato-Rezitativ. So spricht der Herr
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Introduction, Theme and Variations in F Major, Op. 102: II. Theme. Allegretto
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Introduction, Theme and Variations in F Major, Op. 102: II. Adagio
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Introduction, Theme and Variations in F Major, Op. 102: IIII. Variation I
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56839fbf009bd9bf4c77ccfbf542c519e8ef74849387f8dbf61a6962774d7e82. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC9006028 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83cfe50408390732ee2b629b4eac63375a64fa0057669b360af9dab4f96e0f84. Chain 2 (Bitcoin): anchored in block 960376 (2026-07-31T09:09:19Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBHKE1100115 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4a9b560e71b91407e3232b1e298a4ccdd246313d8cd8dd28d7fe88b01c0386d. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC9006031 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9847365e71f58aa54f79c7165c953e521a2033bcbd2d2796f3599fa74359051. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC9006033 — a six-check JSON result.
Donnerode, TWV 6:3, Part I: Wie ist dein Name so gross
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Bach: Funeral music - 11 Motets (excerpts) - Missa brevis
Hasse: Mass in D minor - Miserere in C minor
Choral Music (Sacred) - Zelenka, J.D. / Hasse, J.A. / Heinichen, J.D. / Homilius, G.A.
Brahms, J.: 18 Liebeslieder Waltzes / Schumann, R.: Am Bodensee / Sommerlied / Gute Nacht
Buxtehude, D.: Choral Music - Buxwv 1, 4, 6, 7, 10, 63, 66, 77
Mozart: Requiem in D Minor, K. 626 (Live)
Mein Herze schwimmt im Blut, BWV 199: Recitative. Mein Herze Schwimmt im Blut (Soprano) [Weimar Version]
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Mein Herze schwimmt im Blut, BWV 199: Aria. Stumme Seufzer, stille Klagen (Soprano) [Weimar Version]
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Mein Herze schwimmt im Blut, BWV 199: Recitative. Doch Gott muss mir genadig sein (Soprano) [Weimar Version]
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Mein Herze schwimmt im Blut, BWV 199: Aria. Tief gebuckt und voller Reue (Soprano) [Weimar Version]
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Mein Herze schwimmt im Blut, BWV 199: Chorale. Ich, dein betrubtes Kind (Weimar Version)
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Mein Herze schwimmt im Blut, BWV 199: Recitative. Ich lege mich in diese Wunden (Soprano) [Weimar Version]
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Mein Herze schwimmt im Blut, BWV 199: Aria. Wie freudig ist mein Herz (Soprano) [Weimar Version]
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O heiliges Geist- und Wasserbad, BWV 165: Aria. O heiliges Geist (Soprano)
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O heiliges Geist- und Wasserbad, BWV 165: Recitative. Die sundige Geburt verdammter Adams Erben (Bass)
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O heiliges Geist- und Wasserbad, BWV 165: Aria. Jesu, der aus grosser Liebe (Alto)
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O heiliges Geist- und Wasserbad, BWV 165: Recitative. Ich habe ja (Bass)
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O heiliges Geist- und Wasserbad, BWV 165: Aria. Jesu, meines Todes Tod (Tenor)
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O heiliges Geist- und Wasserbad, BWV 165: Chorale. Sein Wort, sein Tauf, sein Nachtmahl
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Barmherziges Herze der ewigen Liebe, BWV 185: Duet Aria. Barmherziges Herze der ewigen Liebe (Soprano, Tenor)
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Barmherziges Herze der ewigen Liebe, BWV 185: Recitative. Ihr Herzen, die ihr euch (Alto)
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Barmherziges Herze der ewigen Liebe, BWV 185: Aria. Sei bemuht in dieser Zeit (Alto)
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Barmherziges Herze der ewigen Liebe, BWV 185: Recitative. Die Eigenliebe schmeichelt sich! (Bass)
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Barmherziges Herze der ewigen Liebe, BWV 185: Aria. Das ist der Christen Kunst (Bass)
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Barmherziges Herze der ewigen Liebe, BWV 185: Chorale. Ich ruf zu dir, Herr Jesu Christ
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Nur jedem das Seine, BWV 163: Aria. Nur jedem das Seine! (Tenor)
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Nur jedem das Seine, BWV 163: Recitative. Du bist, mein Gott (Bass)
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Nur jedem das Seine, BWV 163: Aria. Lass mein Herz die Munze sein (Bass)
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Nur jedem das Seine, BWV 163: Recitative duet: Ich wollte dir (Soprano, Alto)
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Nur jedem das Seine, BWV 163: Duet Aria : Nimm mich mir und gib mich dir! (Soprano, Alto)
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Nur jedem das Seine, BWV 163: Chorale. Fuhr auch mein Herz und Sinn
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O holder Tag, erwünschte Zeit, BWV 210: No. 10, Seid beglückt, edle Beide
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Schweigt stille, plaudert nicht, BWV 211 "Coffee Cantata": No. 2, Hat man nicht mit seinen Kindern
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Schweigt stille, plaudert nicht, BWV 211 "Coffee Cantata": No. 3, Du böses Kind
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Schweigt stille, plaudert nicht, BWV 211 "Coffee Cantata": No. 4, Ei! Wie schmeckt der Kaffee süße
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Schweigt stille, plaudert nicht, BWV 211 "Coffee Cantata": No. 5, Wenn du mir nicht den Kaffee läßt
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Schweigt stille, plaudert nicht, BWV 211 "Coffee Cantata": No. 6, Mädchen, die von harten Sinnen
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Schweigt stille, plaudert nicht, BWV 211 "Coffee Cantata": No. 7, Nun folge, was dein Vater spricht!
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Schweigt stille, plaudert nicht, BWV 211 "Coffee Cantata": No. 8, Heute noch, lieber Vater
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Schweigt stille, plaudert nicht, BWV 211 "Coffee Cantata": No. 10, Die Katze läßt das Mausen nicht
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Bach, W.F.: Cantatas, Vol. 1 - Lasset Uns Ablegen / Es Ist Eine Stimme Eines Predigers
Bach, W.F.: Cantatas, Vol. 2 - Fk. 64, 83, 85