Metronome is a free metronome for Mac OS X. Metronome is designed with the practicingmusician in mind which means that it's fast and easy to use. Nearly all of Metronome'sfunctions and settings can be changed by using a single key. You won't have to put yourinstrument down to change the tempo (arrow keys) or the accent beat (number keys). Stopand start by tapping the space bar (or the Enter or Return keys).