{"copyright_id":"0x26392f4ffb1645ab94869441fb65c3d7d9d594ad77af4fd811511c3495dcf4bb","isrc":"USSM11900019","name":"Piano Sonata No. 21 in B-Flat Major, D. 960: II. Andante sostenuto","registered_at":"2026-06-09T21:05:43Z","spotify_id":"1iedPN4XzOjFOmqRSRGBAL","type":"track"}