Just a timer: type in how many seconds you want to set a timer for. Click "Go!" The music stops and screen says "Time's Up!" when time's up.
~Updates~ (If you want to know all of them, scroll down since there are 10 versions and the 10th is the one I settled with) Version 1: the music continues when the timer stops. Version 2: the background changes color. Version 3: added to studio. Version 4: the music is soft, not dramatic. Version 5: pink & yellow background. Version 6: red & yellow background. Version 7: you can choose how much time there is. Version 8: better instructions. Version 9: explanation of updates. Version 10: changed title.