Gets the audio processing graph associated with a music sequence.
- iOS 5.0+
- macOS 10.0+
- Mac Catalyst 13.0+
- tvOS 9.0+
The music sequence whose associated audio processing graph you want to get.
On output, the audio processing graph associated with the music sequence.
A result code.
If no audio processing graph is already associated with the music sequence, this function creates a default graph. The default graph contains an Instrument unit (of type DLSMusicDevice) and a dynamic compressor unit (of type DynamicCompressor). In this case, all music tracks in the music sequence have their outputs directed to the Instrument unit.