Piano Keys is a music app that lets you create music without a synthesizer. This app maps each of the 88 keys on a standard piano keyboard to a key on your computer's keyboard. You can compose, practice, or perform using a synthesized piano or one of over 100 other instruments.

Simple in some ways, complex in others

The major feature of Piano Keys is the mappable keyboard. Using a simple interface, you can map each note represented by a piano key to one of the keys on your computer's keyboard, letting you choose the configuration that is most comfortable for you. You can also play note by using your mouse to click on a piano-keyboard interface. You can adjust the app's volume independently of the computer's main volume control.

Useful but limited

If you're looking for an app that lets you use your computer as an instrument, but don't need a full-featured music studio, Piano Keys is an easy-to-use tool that lets you experiment with different sounds.