ios - Get MusicSequence callback from MIDI Playback -

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i have musicplayer contains musicsequence set of musictracks hold midi information. want know when midi note starts reproducing , when ends, listener of playback of midi.

i looking , think of maybe using musicsequencesetusercallback don't know how work. has idea on how accomplish this?

there's tutorial on how capture midi events musicsequence here (such note on/off): http://www.deluge.co/?q=midi-driven-animation-core-audio-objective-c

in brief, method call mididestinationcreate create own midi endpoint handle midi messages, , point musicsequence @ musicsequencesetmidiendpoint.


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