{"copyright_id":"0x496a229556dcb7f90f68b3f4a66e9f9f144dc7ddf8473f023e554dd9792e8b2f","isrc":"HKI199494710","name":"String Quartet No. 21 in D Major, K. 575, \"prussian No. 1\": Ii. Andante","registered_at":"2026-07-29T15:17:07Z","spotify_id":"56uaE2XfzKPDm1XK330LgJ","type":"track"}