{"copyright_id":"0xca18d838d6f5343c5220aaadd5f2f080648dc8e10337e1fdd3d2140ace45b449","isrc":"NLA507100128","name":"Piano Sonata No. 21 in B flat, D.960: 4. Allegro ma non troppo","registered_at":"2026-07-30T15:51:44Z","spotify_id":"3zUsAOVmZwlNdo4HDa4RCF","type":"track"}