MusicSequenceGetTempoTrack(_:_:)

Declaration

func MusicSequenceGetTempoTrack(_ inSequence: MusicSequence, _ outTrack: UnsafeMutablePointer<MusicTrack?>) -> OSStatus

Parameters

• inSequence:

  The music sequence whose tempo track you want to obtain.

• outTrack:

  On output, the tempo track.

Return Value

A result code.

Discussion

Each music sequence has a single tempo track. All tempo events are placed into this track, as well as some other events—such as the time signature from a MIDI file. The tempo track, once retrieved, can be edited and iterated over as can a music track. Most non-tempo events in a tempo track are ignored.

See Also

Managing Music Sequences

• NewMusicSequence(_:)
• DisposeMusicSequence(_:)
• MusicSequenceBarBeatTimeToBeats(_:_:_:)
• MusicSequenceBeatsToBarBeatTime(_:_:_:_:)
• MusicSequenceDisposeTrack(_:_:)
• MusicSequenceFileCreate(_:_:_:_:_:)
• MusicSequenceFileCreateData(_:_:_:_:_:)
• MusicSequenceFileLoad(_:_:_:_:)
• MusicSequenceFileLoadData(_:_:_:_:)
• MusicSequenceGetAUGraph(_:_:)
• MusicSequenceGetBeatsForSeconds(_:_:_:)
• MusicSequenceGetIndTrack(_:_:_:)
• MusicSequenceGetInfoDictionary(_:)
• MusicSequenceGetSMPTEResolution(_:_:_:)
• MusicSequenceGetSecondsForBeats(_:_:_:)