It does what its supposed to do. Just needs a few more features to become 5 stars. 1) ability to import and play your own samples, as the included samples are limited, 2) ability to import your own loops, 3) MIDI out or save MIDI files.

Could you please create a way to export your recordings? Please? I would love to use this with my other music making programs (Beatmaker / Thumbjam / Fourtrack. Thanks for a fun app!

It's very hard to play anything that sounds off. Very fun.

Great app!

It's one of the funnest apps I have. If you don't have it, get it. It's awesome.

For a dollar today I downloaded fun and endless creativity. It's like a vibraphone and a Yamaha keyboard in my pocket. Very cool keyboard design and amazing sound quality. Plug into some good speakers and be prepared to rock the neighbors. The percussion loops offer a good selection too. The iPad makes it even more fun although I was hoping to see more keys without scrolling. Thanks for this.

Most people will never get to a point on an instument that will allow them to enjoy the creative and improvisational aspects of music. This app rewrites the rules of classical instruments (knowing which notes to play when) and brings an opportunity for music creation and improvisation to anyone with an iPhone/iPad, an ear, and a couple of fingers. Such a simple and brilliant idea, and executed far better than anything else out there.

This app rox. U should totally buy it. This is wawesome! (half wow half awesome)

This app is amazing. I know very little about music but I can actually 'jam' with this app and make things sound good. It's true that it is impossible to hit a bad note with the hexatonic scale (I had no idea what that even was before this app). Very cool!

I'm only recently started playing, but so far, this app has made it pretty easy to make good music. Blip Hop is my favorite backbeat and I love the record/playback feature! I'm on 3G and no perf issues (I did turn off Key Illum as the description suggested). Great app!

Fantastic app. Very playable. Sampled sounds are great. Love the design and layout.

This would be the best 99 cents I've spent in a long time, if it weren't for the fact that I let a friend play with it and now he won't give my iPhone back to me. He's just standing here playing some ridiculously good music, giggling like a school girl. His name is Marc, and apparently he likes this app too.

I love this app. You can pick it up and make music without knowing what the hell you're doing, but there are plenty of advanced features (mixolydian scale! tonewheel patch! recording!!) that make sure you never get bored. Really great learning tool, too - a fun way to learn your intervals. Or just mess around with the loops for a few hours. Love. This. App.

I've been using the app for a while now and find the keyboard layout to be very clever, and offers a lot of mobility around the keyboard, as well as smearing notes for dissonance. The scales selection makes it playable for non-musicians/novice musicians, but not at the expense of someone who knows what they are doing. My 6 year old nephew can already lay down some great riffs on it! The samples sound great (passable on the iPhone built-in speakers, but fantastic on headphones or plugged into an amp). The octave selection seems to have been designed with performance in mind as it responds quickly. Drum loops are perfect for jamming. Love the retro look. I've been more inclined to try drumming and percussion apps on the iPhone and have found latency to be a big concern that affects the performance (relegates those apps to toys vs. instruments). The responsiveness of this app is superb elevating it to a truly playable instrument.