I am a rank hobboiest and do own the Genesys XP.

I have it set up to a Technics FA1 Organ and it works out great. There is a dedicated setup for midi accordian which should work out fine for you. I'm sure Dave will follow up with more info shortly.

I had A technics KN 7000 and sold it, I prefered the XP to the KN 7000 in almost every aspect except the organs.

The presets are a dream to set up and use on the xp. I'm not 100% sure but I think a general preset cpould be used for different accordian midi setups

Good luck


Jerry