This project pretty much explains itself, but there's a lot of buttons. Press the button next to bpm to get an exact bpm. Same with volume. When you press the switch it turns it on/off. Click the 4/4 time to change it to 2/4 and then 3/4. You can get a more exact time signature by pressing the button next to it and answering the questions. To get back the box so that you can change the time again simply press the button. (The time signature automatically makes the time signature to _/4 time. For example, if you put in 6/8, then it would convert it into 3/4 time.)