FreePiano is a opensource software that can let you play music with your computer keyboard.
Features of FreePiano:
- Completely free, you do not need to purchase to use all the features.
- Using VSTi, you don't need to install a virtual MIDI device.
- Support a variety of audio output, including DirectSound, WASAPI and ASIO.
- You can define any key on the keyboard and display functions.
- Multi sets of keyboard layout can be switched anytime during play.
- Export your song to mp4 directly.