{"copyright_id":"0xd1a36cad761828939d18f450a38a74746df9137f48f3d6747d2b949ce8097679","isrc":"DEAQ71000072","name":"Piano Sonata No. 9, Op. 68 \"Black Mass\"","registered_at":"2026-07-31T03:38:40Z","spotify_id":"4nEJOsZqtdEXMJ9VTQPXoI","type":"track"}