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MusicPlayer and MusicSequence channelizing

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MusicPlayer and MusicSequence channelizing

Subject: MusicPlayer and MusicSequence channelizing
From: Robert Martin <email@hidden>
Date: Fri, 6 May 2005 13:43:30 -0400

I'm doing some housekeeping on an old app, and am looking forward to ripping out my home brewed MIDI File player and replacing it with the CoreAudio MusicPlayer/MusicSequencer.

What I can't seem to figure out is how to hook into the event stream in order to channelize and transpose while the sequence is playing. The only callback I can find is for UserEvents.

Is there a simple way to do this? Or do I have to do it manually - eg: Iterate through all the tracks in the sequence Get each event Apply channel mask and transposition Stuff the event into a MIDIPacket and adjust the timestamp for tempo Send it to the MIDI Server queue?

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