I've just released an iPad app based on samples from my new Hohner Cajun IV one-row in C, has both treble (LMH and LMMH) and bass/chord buttons emulated, optional reverb.
It works just like my other apps (touch the bellows for push, lift for pull) and you can touch between the bass side buttons to switch the bellows.
Re: New Hohner Cajun IV iPad button accordion app!
The Hohner Cajun SqueezeBox iPad app is FREE today (Saturday, 9/7) only! Full version, no ads, just want to get some copies out there to spread the word. https://itunes.apple.com/us/app/hohner-cajun-squeezebox/id420203525?ls=1&mt=8