{"copyright_id":"0xa156acabd51dc234a15c66445f8c83d5d373dc010a1a55573e738e784665cfb2","isrc":"DEF059102321","name":"String Quartet No. 15 in D Minor, K. 421: I. Allegro moderato","registered_at":"2026-07-30T22:46:28Z","spotify_id":"41v8YCQ8RIXICnWXL2K1Ny","type":"track"}