{"copyright_id":"0x9578724349803dcd31c43d41dfc9497c5bf3e73c41decc6d3597b255e54cc03c","isrc":"NLY332103427","name":"10 Mazurkas, Op. 3: I. Tempo Giusto in B Minor","registered_at":"2026-07-31T03:23:52Z","spotify_id":"1bbHtrMsfQ25el4E4SRvQP","type":"track"}