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description: Zdeněk Košler (25 March 1928 – 2 July 1995) was a Czech conductor. He played an important role in Czechoslovak musical life of the second half of 20th century, notably during the 1960s and 1980s.Bedři
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album: Classical Music - 50 of the Best
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album: The Essentials: Greatest Classics, Vol. 1
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Scythian Suite, Op. 20: IV. Lolly's Pursuit of the Evil God and the Sunrise
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The Bartered Bride, Act I, Scene 5: "Polka a Chorus - Come On, Girl, Let´s Be Merry"
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audio: The Bartered Bride, Act II, Scene 4: "I Know a Girl" (Kecal, Jeník)
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Trojan: A Midsummer Night's Dream, The Emperor's Nightingale
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101 Classics - The Best Loved Classical Melodies
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    date published: 2026-07-07T16:07:00Z
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track: Emperor Waltz, Op. 437: Kaiser Walzer (Emperor Waltz), Op. 437
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track: The Danube Waves: Valurile Dunarii (The Danube Waves)
track: Serenade for Strings in C Major, Op. 48: II. Walzer
track: Les Patineurs, Op. 183, "The Skater's Waltz"
track: Sobre las olas (Over the Waves)
track: The Nutcracker Suite, Op. 71a: VIII. Waltz of the Flowers

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OpenTimestamps Proof of Existence
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date published: 2026-07-08T03:20:19Z

Emperor Waltz, Op. 437: Kaiser Walzer (Emperor Waltz), Op. 437
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The Danube Waves: Valurile Dunarii (The Danube Waves)
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subject of: OpenTimestamps Proof of Existence
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Serenade for Strings in C Major, Op. 48: II. Walzer
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Les Patineurs, Op. 183, "The Skater's Waltz"
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Sobre las olas (Over the Waves)
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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  value: 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
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:22:41Z
audio: Sobre las olas (Over the Waves)
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The Nutcracker Suite, Op. 71a: VIII. Waltz of the Flowers
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duration ms: 416000
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by artist: Pyotr Ilyich Tchaikovsky
by artist: Slovak Radio Symphony Orchestra
by artist: Ondrej Lenard
in album: 101 Classics - The Best Loved Classical Melodies
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popularity: 1
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:53:27Z
audio: The Nutcracker Suite, Op. 71a: VIII. Waltz of the Flowers
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50 of the Best: Mozart
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date published: 2011-11-15
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  additional property: OTSVerifyInstructions
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    value: 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
  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-08T08:56:20Z
  audio: Serenade No. 13 in G Major, K. 525, "Eine kleine Nachtmusik": I. Allegro
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track: Symphony No. 40 in G Minor, K. 550: I. Molto allegro
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  by artist: Philharmonia Cassovia
  by artist: Johannes Wildner
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    type: MusicAlbum
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  popularity: 3
  genre: classical
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-07T13:52:39Z
  audio: Symphony No. 40 in G Minor, K. 550: I. Molto allegro
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track: Symphony No. 25 in G Minor, K. 183: I. Allegro con brio
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  by artist: Capella Istropolitana
  by artist: Barry Wordsworth
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  popularity: 2
  genre: classical
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  subject of: OpenTimestamps Proof of Existence
  audio: Symphony No. 25 in G Minor, K. 183: I. Allegro con brio
track: Ave verum corpus, K. 618
track: Piano Concerto No. 23 in A Major, K. 488: II. Adagio
track: Fantasia in D Minor, K. 397
track: Symphony No. 38 in D Major, K. 504, "Prague": III. Finale: Presto

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OTSVerificationAPI
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OTSTimestamp
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OTSVerifyInstructions
type: PropertyValue
value: 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

OpenTimestamps Proof of Existence
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date published: 2026-07-08T03:53:27Z

Symphony No. 25 in G Minor, K. 183: I. Allegro con brio
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additional property: Energy
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additional property: Speechiness
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additional property: Acousticness
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additional property: Instrumentalness
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additional property: Liveness
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additional property: Valence (Positivity)
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additional property: Loudness (dB)
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additional property: Key Name
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additional property: Mode Name
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Ave verum corpus, K. 618
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duration: PT2M47S
duration ms: 167266
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by artist: Wolfgang Amadeus Mozart
by artist: St. Clement Concert Choir
by artist: St. Clement Concert Orchestra
by artist: Randall Swanson
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popularity: 2
genre: classical
genre: classical-era
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additional property: OTSVerificationAPI
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:22:41Z
audio: Ave verum corpus, K. 618
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Piano Concerto No. 23 in A Major, K. 488: II. Adagio
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duration: PT6M25S
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by artist: Wolfgang Amadeus Mozart
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genre: classical
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:22:41Z
audio: Piano Concerto No. 23 in A Major, K. 488: II. Adagio
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Violin Partita No. 3 in E Major, BWV 1006: I. Preludio
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Canon and Gigue: Canon
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An der schonen, blauen Donau (The Beautiful Blue Danube), Op. 314
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Symphony No. 5 in C Minor, Op. 67: I. Allegro con brio
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Liebesträume, S. 541: 3 Liebestraume, S541/R211: No. 3: Nocturne in A-Flat Major
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Bagatelle in A Minor, WoO 59, "Fur Elise"
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by artist: Ludwig van Beethoven
by artist: Balazs Szokolay
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genre: classical-piano
genre: chamber-music
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-06T07:16:32Z
audio: Bagatelle in A Minor, WoO 59, "Fur Elise"
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Brandenburg Concerto No. 3 in G Major, BWV 1048: III. Allegro
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by artist: Cologne Chamber Orchestra
by artist: Helmut Müller-Brühl
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: Brandenburg Concerto No. 3 in G Major, BWV 1048: III. Allegro
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Mandolin Concerto in C Major, RV 425: I. Allegro
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by artist: Paul O'Dette
by artist: The Parley of Instruments
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:22:41Z
audio: Mandolin Concerto in C Major, RV 425: I. Allegro
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Die Walkure, Act III: Ride of the Valkyries
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by artist: Slovak Radio Symphony Orchestra
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:22:41Z
audio: Die Walkure, Act III: Ride of the Valkyries
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Toccata and Fugue in D Minor, BWV 565: Toccata
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by artist: Wolfgang Rübsam
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: Toccata and Fugue in D Minor, BWV 565: Toccata
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1812 Festival Overture, Op. 49: 1812 Overture, Op. 49
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by artist: Ukraine National Symphony Orchestra
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:53:27Z
audio: 1812 Festival Overture, Op. 49: 1812 Overture, Op. 49
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Nocturne No. 2 in E-Flat Major, Op. 9, No. 2
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by artist: Idil Biret
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-07T18:39:05Z
audio: Nocturne No. 2 in E-Flat Major, Op. 9, No. 2
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The Planets, Op. 32: IV. Jupiter, the Bringer of Jollity
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subject of: OpenTimestamps Proof of Existence
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Viola Concerto in G Major: II. Allegro
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subject of: OpenTimestamps Proof of Existence
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Music for the Royal Fireworks, HWV 351: IV. Le rejouissance
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subject of: OpenTimestamps Proof of Existence
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Mass in B Minor, BWV 232: Agnus dei
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  date published: 2026-07-08T03:53:27Z
audio: Mass in B Minor, BWV 232: Agnus dei
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Bolero
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3 Gymnopedies: No. 1. Lent et douloureux
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Piano Concerto in A Minor, Op. 16: I. Allegro moderato
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The Well-Tempered Clavier, Book I: Well-Tempered Clavier, Book I: Prelude and Fugue No. 1 in C Major, BWV 846
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-07T18:50:38Z
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The 4 Seasons: Violin Concerto in F Minor, Op. 8, No. 4, RV 297, "L'inverno" (Winter): II. Largo
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
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Rinaldo, HWV 7a: Lascia ch'io pianga (Let me lament)
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Piano Sonata No. 14 in C-Sharp Minor, Op. 27, No. 2, "Moonlight": I. Adagio sostenuto
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  date published: 2026-07-06T07:16:32Z
audio: Piano Sonata No. 14 in C-Sharp Minor, Op. 27, No. 2, "Moonlight": I. Adagio sostenuto
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Suite bergamasque: III. Clair de lune (orch. A. Caplet)
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Goldberg Variations, BWV 988: I. Aria
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Gianni Schicchi: O mio babbino caro (Lauretta)
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Serse (Xerxes), HWV 40, Act I: Ombra mai fu: Largo (Serse)
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Nabucco, Act III: Va, pensiero, "Chorus of Hebrew Slaves"
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Prélude à l'après-midi d'un faune, L. 86: Prelude a l'apres-midi d'un faune
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Le nozze di Figaro, K. 492, Act I: Overture
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Messiah, HWV 56, Part II: Hallelujah
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La crème de la crème: La musique classique
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Spellbinding Classics: Classical Music for the Witching Hour
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The Essentials: Greatest Classics, Vol. 1
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track: Piano Sonata No. 14 in C-Sharp Minor, Op. 27, No. 2, "Moonlight": I. Adagio sostenuto
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Dvořák: Tenor Arias
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  additional property: OTSVerifyInstructions
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    date published: 2026-07-08T03:20:19Z
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-08T03:20:19Z
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OpenTimestamps Proof of Existence
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date published: 2026-07-08T03:22:41Z

Concerto for 2 Horns in E-Flat Major, TWV 52:Es1: III. Grave
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Seidel, Dvořáček, Boháč: Songs
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Smetana: The Bartered Bride. Highlights from the Opera
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  additional property: OTSVerifyInstructions
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-08T03:53:27Z
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-08T03:53:27Z
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  subject of: OpenTimestamps Proof of Existence
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OpenTimestamps Proof of Existence
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date published: 2026-07-08T03:20:19Z

The Bartered Bride, JB 1:100, Act I, Scene 5: Finale. Polka and Chorus. Come On, Girl, Let's Be Merry ...
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50 of the Best: Romantic Symphonies
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date published: 2012-02-15

Dvořák: Mezzo-Soprano Arias
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Martinu: Epic of Gilgamesh (The)
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The Secret and Viola (fragment)
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Smetana: Libuše, JB 1:102 (Live)
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Smetana: Libuše. Festive Opera in 3 Acts
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Martinů: Rhapsody-Concerto, Sinfonia concertante
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Grandes Compositores - Stravinsky
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Jirásek: Symphony. Matka naděje
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Strauss: Also sprach Zarathustra
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Dobiáš: Sonata for Piano, Wind Quintet, Strings and Timpani - Seidel: Oboe Concerto No. 2
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track: Slavonic Dances, Series II, Op. 72, B. 147: No. 1, Odzemek. Molto vivace
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Berlioz - Fantastic Symphony
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Mozart: Symphony No. 36 in C Major, K. 425 "Linz" (Digitally Remastered)
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Suk: Fairytale, Op. 16 - Nedbal: The Tale of Simple Johnny (Live)
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Paganini, Slavík: Violin Concertos
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