{"copyright_id":"0xff20213ae3408b119691e52747a45a6ef464ed17e222bbb072bc1da3e2d3bb9e","isrc":"USBC14700233","name":"Sonata for Piano and Violin No. 1 in D Major, Op. 12 No. 1: Variation IV","registered_at":"2026-07-31T06:30:41Z","spotify_id":"5CQb26N16fZ2m9HXdVl7rI","type":"track"}