This is metronome program like digital hardware metronome for musicians. There are "tap" button, user presets, little notepad for user comments, volume control, measure size and click sound select in this program. Don't press the "Tap" button at least 2 seconds if you want change temp value! Unregistred version work 15 minutes and allow use only 2 user presets. User can restart this program to get next 15 minutes.