It seems like some of the Korg designers visit the forum, so I hope this post might grab their attention. I've made some suggestions on how the M50 firmware can be improved to make patch/performance changes easier:
1) Configurable option to have a one-button change of patches or performances. This would obviously only work with 10 patches / performances at the same time. This could also be improved, so that if you press minus (-) or dot (.) at the same time, then you lock/unlock the two leading numbers.
2) The option to have notes retrigger in performance mode like it does in patch mode. I know there is a slight delay, but still the retrigger option would be valuable for some people.
3) Being able to use the chord trigger buttons to send program change in both patch and performance mode. Or even make them assignable to something else, so they can be used like the SW1 and SW2 buttons.
When you play live using only one keyboard, you don't have the time to fiddle around too much with your hands within a songs. I know a pedal board would make timbre change easier, but that also means bringing along extra equipment.
This is not ranting, it's positive feedback on how I think the M50 can be a better unit

R