A growing collection of computer games that are freeware, open source or free to play.

You hear the original song and at the same time you can read the lyrics and see a gray bar. The bar shows you the length of the sound and the pitch. Your own voice is displayed by a blue bar that shows you whether you have sung correctly or not. The better your performance is, the more points you get and in the end you might be “amateur” or “lead singer” depending on how good you were.