Almost Terrific!

This does an O.K. job of one or two tracks ( voice and guitar or banjo and harmonica) using the internal microphone on an iPad. It was the first to export tunes via email really well. However, GarageBand now exports via email and works better than this. You need to buy an external microphone before you can record voice and instruments properly.

Snakespit about Multi Track Song Recorder, v3.0.3