Hi Robert — no. Inter-App Audio was iOS-only, deprecated in iOS 13, and Music never exposed a node. On macOS use a Core Audio process tap (macOS 14.2+: CATapDescription + AudioHardwareCreateProcessTap, scoped to Music.app); needs NSAudioCaptureUsageDescription. Alternatives: ScreenCaptureKit (13+, screen-recording prompt) or BlackHole/Loopback. Test a DRM'd catalog track first — it may come back silent. On iOS there's no system audio capture at all.