Hi, Shawn, to troubleshoot this thing just connect MIDI out to PC (with any MIDI-USB converter, I use Roland UM-ONE), play a song from LP-16 from USB memory and run MIDI-OX to see what messages you are actually sending. My wild guess is you are sending the wrong note. My LED commander uses for first scene note C0 but in my DAW I must transpose C0 note down by 24 semitones. Try trasposition if it works for you. Richard.