Plecter fonts cant simply be renamed for NEC boards to work properly. Sure they will work, but the hum sound is mixed into every file which then makes the hum overpowering when two sounds play at the same time. NEC boards play the hum constantly and mix the other sounds in as they occur. Youll end up with loud hums in swing noises and then itll sound much quieter when its just stationary. It's a shame but you can adapt an NEC font for Plecter by mixing in a hum, but not the other way around.