Bottom line is, which style Part or which keyboard Part is ALWAYS playing the full correct chord for the harmonizer to derive the correct notes and intervals to transpose your voice to?

Do you always full LH chord the arranger section? Probably that LWR Keyboard Part channel. Do you do a combination of LH chording and full keyboard chording? Probably the LWR and UPPER Part channels.

I didn’t see in the above manual excerpt if you could select multiple channels as control channels or not. If it can’t, you are kind of in a bit of trouble if you don’t run the arranger the same way all the time. You might need to swap around VoiceLive MIDI templates…

Bottom line with any of the harmonizers. None of them are really designed for arranger players, they’re pretty much designed to either accept an acoustic guitar’s audio output, or the MIDI output of a single channel stage piano/organ etc. Throwing a whole bunch of different channels at them at the same time is a scenario they don’t really want to deal with. The simpler the input, the better the tracking.

Now add in drum notes, if you’re sending a style’s entire MIDI output at a harmonizer if it actually COULD see them all, and you’ve got a whole bunch of non-harmonic notes mixed in with the good ones to confuse the poor chord detection system.

But of course, throw an arranger’s full audio at a harmonizer, and now you’ve got all the drums and percussion throwing non-pitched sounds at that poor detector too! That they work at all is something of a miracle!