{"copyright_id":"0xb3f2f6c379f52abf91d56fe80b4303e157b80c19a10d8f6d6cf18eaaf7f32f27","isrc":"FIFIN9700412","name":"Sibelius: 5 Pieces for Violin and Piano, Op. 81: No. 1, Mazurka","registered_at":"2026-08-01T01:01:56Z","spotify_id":"7j9DGurVLa4uPCiBbWgbkA","type":"track"}