I'm a Guitarist/singer songwriter who plays keys about 20% of the time on stage. I curious to know if anyone makes a 4 octave (or 46 to 49 Key) board that has decent acoustic and electric piano tones. I know 4 octives is weird....One of my hobbies is to re-purpose old broken instruments that are beyond repair. For my current project I would like to find a 4 octave keyboard that I plan to fit into a gutted chord organ..thus the board size is important. I can modify the old organ some but don't want ruin the unique vintage asthetic of the old frame.. I have never seen a professional level keyboard at 4 octaves. I suspect its because nobody would buy one...Anyone have any thoughts or recommendations? Every 61 key is just too large to fit into the organ frame...