ZynSeq will send MIDI note on messages to represent the current play status of each sequence with play state represented by MIDI note velocity. This may be used by an external pad controller like Novation's Launchpad, Akai APC, etc. to indicate the status of a sequence. The note number sent is the same as the external trigger configured for a sequence. Tallies are sent on the same MIDI channel as configured to receive triggers. Currently only the following tallies are configured which will work with Akai APC: