Piano input devices
Midi controller
Mouse
Mouse can be used in 3 modes:
Single-mode: One key can play at a time. Press and hold your left mouse button to effect the duration of the sound.
Chord-mode: Press and hold the keyboard 'Ctrl/Cmd' button while selecting multiple keys with your mouse. Press 'Esc' to cancel selection.
Drag-mode: Press and hold the keyboard 'Alt' button while moving your mouse over the keyboard.
Perfect Pitch Test 
Sight singing trainer 
Vocal range test 
Music Scales Tool 
Vocal warmup tool 
Interval memorizer 
Interactive Circle of Fifths 
Chord player 
Virtual Piano Keyboard & Recorder 
