Good but miss important features

First of all traditional harmonium preset sounds unnatural, may be reverberation feature would solve this out
Second theres no emulation of reed which player uses to add modulations to sound. I propose to add reponse to fingers vibration while pressing note (like making vibrato on guitar) or any other thing to make these modulations possible
Also, application needeed to restart after it was folded (screen would not respond). Tested on IOS 4.2.1

Chuen13 about Harmonium, v1.8.5