yesterday - Version: 0.7.2
Virtual MIDI Piano Keyboard is a MIDI events generator and receiver, can be used to drive a MIDI synthesizer (either hardware or software, internal or external). You can use the Virtual MIDI Piano Keyboard to display the played MIDI notes from another instrument or MIDI file player. To do so, connect the other MIDI port to the input port of VMPK. The alphanumeric keyboard mapping can be configured from inside the program using the GUI interface, and the settings are stored in XML files.
Screenshots Virtual Piano Keyboard for Linux
Easy to use virtual midi keyboard with very nice GUI details on the keys.
Really easy to use. You open the program, and you are playing. It would be awesome if the author could update the packages in the ubuntu repositories from time to time.