USEFUL FOR PRACTCING INSTRUMENTS. I spent four days working on this! It's hard work! Please love-it! Instructions are inside the metronome. Please note that the metronome may be a bit fast now (but much closer to the real tempo than version one). If you run this in turbo mode, it becomes too fast. FEEL FREE TO REMIX MY METRONOME PROJECTS NOW. Once again, please love-it. Thanks! P.s.: spazzing makes the metronome considerably slower.