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genre: hungarian-classical-performance
description: Vilmos Tátrai (7 October 1912 – 2 February 1999) was a Hungarian classical violinist and the founder of the Tátrai Quartet. Life Tátrai was born in Kispest, now 19th district of Budapest. A profess
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  track: The Marriage of Figaro, K. 492: Overture
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  track: Symphony No. 40 in G Minor, K. 550: I. Molto allegro
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Symphony No. 40 in G Minor, K. 550: I. Molto allegro
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Symphony No. 40 in G Minor, K. 550: I. Molto Allegro
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Concerto Grosso in G Minor, Op. 6, No. 8, "Christmas Concerto": I. Vivace - Grave
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Concerto Grosso in G Minor, Op. 6, No. 8, "Christmas Concerto": II. Allegro
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additional property: OTSVerifyInstructions
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  date published: 2026-07-02T03:30:09Z
audio: Concerto Grosso in G Minor, Op. 6, No. 8, "Christmas Concerto": II. Allegro
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Concerto Grosso in G Minor, Op. 6, No. 8, "Christmas Concerto": III. Adagio - Allegro - Adagio
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by artist: Vilmos Tátrai
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by artist: Janos Sebestyen
by artist: Hungarian Chamber Orchestra
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genre: classical
genre: early-music
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additional property: OTSVerifyInstructions
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  date published: 2026-06-13T13:32:09Z
audio: Concerto Grosso in G Minor, Op. 6, No. 8, "Christmas Concerto": III. Adagio - Allegro - Adagio
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Concerto Grosso in G Minor, Op. 6, No. 8, "Christmas Concerto": IV. Vivace
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by artist: Arcangelo Corelli
by artist: Vilmos Tátrai
by artist: Margit Bardócz
by artist: Janos Sebestyen
by artist: Hungarian Chamber Orchestra
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genre: classical
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additional property: OTSVerifyInstructions
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  date published: 2026-07-02T03:30:09Z
audio: Concerto Grosso in G Minor, Op. 6, No. 8, "Christmas Concerto": IV. Vivace
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Concerto Grosso in G Minor, Op. 6, No. 8, "Christmas Concerto": V. Allegro
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by artist: Arcangelo Corelli
by artist: Vilmos Tátrai
by artist: Margit Bardócz
by artist: Janos Sebestyen
by artist: Hungarian Chamber Orchestra
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genre: classical
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additional property: OTSVerifyInstructions
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  date published: 2026-07-02T03:30:09Z
audio: Concerto Grosso in G Minor, Op. 6, No. 8, "Christmas Concerto": V. Allegro
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Concerto Grosso in G Minor, Op. 6, No. 8, "Christmas Concerto": VI. Pastorale ad libitum: Largo
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by artist: Vilmos Tátrai
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by artist: Janos Sebestyen
by artist: Hungarian Chamber Orchestra
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genre: classical
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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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  date published: 2026-07-02T05:09:12Z
audio: Concerto Grosso in G Minor, Op. 6, No. 8, "Christmas Concerto": VI. Pastorale ad libitum: Largo
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Cello Concerto in D Major (version for cello and orchestra): I. Largo
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duration: PT5M7S
duration ms: 307213
explicit: false
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by artist: Janos Sebestyen
by artist: Hungarian Chamber Orchestra
by artist: Vilmos Tátrai
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  type: MusicAlbum
  date published: 2014-07-15
genre: classical
genre: baroque
genre: italian-baroque
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T05:17:02Z
audio: Cello Concerto in D Major (version for cello and orchestra): I. Largo
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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 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

Cello Concerto in D Major (version for cello and orchestra): II. Allegro
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duration: PT5M3S
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by artist: Hungarian Chamber Orchestra
by artist: Vilmos Tátrai
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  type: MusicAlbum
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genre: classical
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genre: italian-baroque
subject of: OpenTimestamps Proof of Existence
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Cello Concerto in D Major (version for cello and orchestra): III. Grave
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Sinfonia for Strings in G Major, RV 146: I. Allegro
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Serenade No. 6 in D Major, K. 239, "Serenata Notturna"*: II. Menuetto
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Serenade No. 13 in G Major, K. 525, "Eine kleine Nachtmusik": III. Menuetto: Allegretto
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Divertimento No. 11 in D Major, K. 251: III. Andantino
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The History of Classical Era Music (100 Famous Songs)
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A Beginner's Guide to Learn to Love Classical Music
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The Marriage of Figaro, K. 492: Cherubin's Song - "Voi Che Sapete" (Instrumental Version)
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Impromptu in A-Flat Major, Op. 90: No. 4, D. 899
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Piano Concerto No. 26 in D Major, K. 537, "Coronation": III. Allegretto
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Music for the Royal Fireworks, HWV 351: V. Menuets I and II
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audio: Music for the Royal Fireworks, HWV 351: V. Menuets I and II
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Song Without Words, Op. 67: No. 4 in C Major, "Spinning Song"
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My Life Is Love and Pleasure, Op. 263
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Rondo a Capriccio in G Major, Op. 129, "Rage Over a Lost Penny“
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The Magic Flute, K. 620, Act II: Papageno‘s Aria (Instrumental Version)
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subject of: OpenTimestamps Proof of Existence
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Water Music Suite No. 2 in D Major, HWV 349: II. Alla Hornpipe
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Mandolin Concerto in C Major, RV 425: I. Allegro
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Eljen a Magyar, Op. 332
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audio: Eljen a Magyar, Op. 332
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Humoresque, Op. 10: No. 2
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Perpetuum Mobile, Op. 257
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Horn Concerto No. 2 in E-Flat Major, K. 417: III. Rondo - Allegro
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Solomon, HWV 67, Act III: Arrival of the Queen of Sheba
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Piano Sonata No. 16 in C Major, K. 545, "Sonata Facile": I. Allegro
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Carmen Suite No. 2, Act II: VI. Danse Boheme
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The Ice Skaters Waltz, Op. 183
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Swan Lake, Op. 20, Act II: Scene No. 10, Moderato
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Waltz No. 1 in E-Flat Major, Op. 18, "Grande Valse Brillante"
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Classical Stress Relief: 99 Must-Have Classical Meditation & Relaxation
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track: Melancholy Galliard
track: Tosca, Act III: "E lucevan le stelle" (Instrumental Version)

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100 Must-Have Austrian Classics
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Classical Masterpieces of the Millennium
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Mozart for Walking
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100 Must-Have History of Classical Music
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Mozart for Babies
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Mozart Coffee Lounge
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Mozart (Red Classics)
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Corelli: Christmas Concerto / Tartini: Cello Concerto in D Major / Vivaldi: Sinfonia for Strings
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Baroque Day-Dream (A)
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Symphonies: Mercury - The Bear - The Suprise
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Mozart: Symphonies G Minor K. 550 - B Flat Major K. 319
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String Quartets Nos. 1-6, Divertimento
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Vivaldi, Geminiani: Guitar Concertos and Sonatas
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Sinfonia Concertante K.A9 - Serenade K.375
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Haydn: Symphonies Nos. 49, 59 & 73
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Haydn: Symphonies Nos. 39, 47, 54
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Haydn: Symphonies Nos. 26. 44 and 45
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Wranitzky: Symphony in C Major / Csermak: Threatening Danger of Love of the Fatherland
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Szervanszky: Serenade / Variations / Flute Concerto / Clarinet Concerto
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Ii. zongoraverseny - f-moll zongoraverseny
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Viennese Classicism In Slow Movements, Vol. 1: Haydn
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Christmas Concert
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track: Flute Concerto in G Major, RV 437: III. Allegro
track: Flute Concerto in G Major, WK 50: II. Adagio
track: Flute Sonata in C Major, WK 123: II. Allegro
track: Trio Sonata in G Major, WK 80: I. Vivace
track: Trio Sonata in G Major, WK 80: III. Menuetto

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Flute Concerto in F Major, RV 434: I. Allegro ma non tanto
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Flute Concerto in G Major, RV 437: II. Largo
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Flute Concerto in G Major, RV 437: III. Allegro
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  type: PropertyValue
  value: 2026-07-08T03:53:27Z
additional property: 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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89cef8bfa5cf9a8dfef45f6c95d843d3931ec2a4e9763a4d16adab3c215d6192. 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/NLY331703606.
  date published: 2026-07-08T03:53:27Z
audio: Trio Sonata in G Major, WK 80: III. Menuetto
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 138.433
  additional property: Musical Key
    type: PropertyValue
    value: 6
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.295
  additional property: Energy
    type: PropertyValue
    value: 0.127
  additional property: Speechiness
    type: PropertyValue
    value: 0.041
  additional property: Acousticness
    type: PropertyValue
    value: 0.856
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.001
  additional property: Liveness
    type: PropertyValue
    value: 0.142
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.378
  additional property: Loudness (dB)
    type: PropertyValue
    value: -23.256
  additional property: Key Name
    type: PropertyValue
    value: F#
  additional property: Mode Name
    type: PropertyValue
    value: Major