This patch is a quarter tone 24 note Equal Division of the Octave (EDO) patch with a basic reed organ sound. The odd registers are actual pitch (i.e. C3 is C but C4 is F#). The attenuator setting is what is determining the pitch range. Tailor the sound as you like. Using a 24 pad midi interface from an iPad midi app may be more useful than an actual keyboard. Have fun and let us hear what you create!