I'm interesting in asking for an electronic roll-up piano for Christmas (61 keys). I play the piano at home but would like to be able to take a piano with me and this seems like a great idea. However, I have researched other people's reviews and most of them are terrible. My main complaint is that it won't let you play more than four notes at a time. Is there a roll-up piano out there that lets you play chords? I have briefly looked but can't find anything that will let you play more than four notes. I would like to play chords and octaves. Ever heard of such a thing? If so, how much does it cost and where can I find it?