{"copyright_id":"0xdef72b081c61b8761060267ee6eea81025e9681b1b534a82fb41f462f56f619f","isrc":"USBC16000320","name":"Violin Sonata in A Major No. 9, Op. 47 \"Kreutzer\": II. Variation IV","registered_at":"2026-07-30T12:59:38Z","spotify_id":"3Ot3WhxvfYnGZ8QrRPAnhQ","type":"track"}