Here is how the frontpanel will look like. I've never been a big graphic designer so the design is kept quite simple. Each blue field contains the knobs for one sound module. The sound modules are intentionally not labeled since the modules are (or should be) designed flexible enough to to create sounds which are beyond the scope each separate module was designed for. Still the intended use is (from left to right): bass drum, snare drum, high-hats (open and closed), tom and crash. The bottom part is the step sequencer with red leds showing the pattern of a single instrument and green leds which show the position in the sequence. Two rotary knobs select the intrument which should be edited. Apart from the six internal modules an external channel (there's an accent and trigger out for this channel) and a digital sample player (a future project) can be programmed. Four patterns can be stored, the pattern to be edited is selected using the second rotary switch. The rest is self-explanatory i think.
Oops, i forgot to say: the case will be an plastic toolbox, so the size is adapted to this box.