Virtual MIDI Keyboard in Ubuntu at Compdigitec Labs
Virtual Piano | Play the Best Musical Keyboard Online
Connect your piano via MIDI to Virtual Piano | Virtual Piano
Piano And Keyboard Simulators: Online Emulators That Can Be Used In Browser -
VMPK. Virtual MIDI Piano Keyboard
Virtual Piano Black
I made a virtual piano keyboard that can be controlled using a MIDI keyboard. I'll be using it myself to practice my scales, and hoping it can be useful to others too. :