Lots of notes... nine-or-ten-note block chords. If there's anything else going on, it's only the sustain pedal. If by MIDI output driver you mean from the PC to the keyboard, that's the edirol driver supplied by PGMusic and the M-Audio Uno USB hardware. Doesn't happen every time. BTW, I stopped all antivirus/malware software and disabled the communications adapter. I'll let you know if I see anything by watching the filtered MIDI monitor.

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(From Andrew) Hello Mel,

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However, several times during three choruses a whole chord is captured as lagging my actually played notes by 15 or more ticks



So it sounds like this is happening when your keyboard is sending alot of MIDI events at once. Is it only notes, or are there some other controllers as well? Check the Melody track event list. What are you using as your MIDI output driver? Can you see the delay if you watch the MIDI Monitor, filtered to show only computer MIDI input.


-Mel