{"copyright_id":"0xc442aed1d371764a4cb4259e066099c0810bb1ccfdaf6d640e7722ffb2bb2be5","isrc":"FINDE2200100","name":"4 Mazurkas, Op. 17, B. 77: No. 11 in E Minor","registered_at":"2026-07-31T05:07:42Z","spotify_id":"4lk41bGtImE0otxsu4Jc2a","type":"track"}