Musician - A musician's tool. A tuner for guitar and violin, plus a metronome to start songs off at the right tempo. Hence Musician. There are polyphonic tuning tones for E, B, G, D and A, enough to tune both guitar and violin. The tones last for a few seconds, but you can replay them as needed or cut them short by choosing something else from the menu. The metronome will display 20 beats at any tempo from 50 to 250 beats per minute.