{"copyright_id":"0xa4741826d4ea8e600a9f81606e3c7a8e0f855f8fe25fd612dab987dcc3613d59","isrc":"NLA507300512","name":"String Quartet No. 6 in B flat, Op. 18 No. 6: 4. La Malinconia (Adagio - Allegretto quasi allegro - Adagio - Allegretto - Poco adagio - Prestissimo)","registered_at":"2026-07-31T12:37:21Z","spotify_id":"2iOpI2X9HTa6vN0XlJgn0D","type":"track"}