{"copyright_id":"0x6e053937f47d17dba00bb02b5a1bc36fb15b5c6e5c02345e80748fe0c2660c5d","isrc":"FRZ208402308","name":"Mudarra: Libros de música en cifra, Libro III: Romanza II. \"Triste estava el Rey David\"","registered_at":"2026-07-31T17:39:23Z","spotify_id":"6GLOZcY67wv2sovIGZub1M","type":"track"}