Music Kit

Music Kit contains 3 key apps for musicians and songwriters on the road:

A pocket-sized easy to use multitrack recorder.
A metronome - steady beat in 3/4 and 4/4.
A (guitar) tuner that works on microphone input
Extra: a riffripper, for analyzing (fast) solos.

Some phones reportedly have issues with the tracks of the multitrackrecorder being out out of sync.  This version includes an option to synchronize the tracks manually.  This is a temporary workaround until the underlying issues are resolved.