Solid Package (Update: FOR THE LOVE OF GOD, ADD MIDI IN AND MIDI OUT OPTIONS)

Incredibly powerful music app. Only shortcomings are the limited numbers of sounds on the smart instruments and the occasional optimizations the software makes to the songs, which can take up to ten seconds for changing things like keys. Overall, this app has helped me start off my official music career after being a guitarist for ten years!

Edit: Although it has help me write a lot of great stuff, I cant help but feel this app is not at its full potential due to lack of midi in and out support. Sure, you can hook up a keyboard, but you cant, for example, send the midi data from the wonderful chord strips to something like Korg Gadget (which takes in midi data.) If the app were cared for more, instead of being abandoned for months and months, it could really be a top killer among the iOS music production community.

Cayfabe about GarageBand, v2.2.2