{"copyright_id":"0xba5a8442385fa4c5b4de8903faab34ba79f3e4b7362102fa9c06f71117c78d18","isrc":"JPG200811109","name":"ダッタン人の踊り (歌劇 イーゴリ公より) 1 序章","registered_at":"2026-07-22T10:39:32Z","spotify_id":"0YfScjJB8FiylPSk9gOMsM","type":"track"}