Tool bar
   

graphic

Tool bar is set of 5 buttons located at the right of Key bar

graphic  Long Play button.Start continuous playing of displayed chord using synth sound

graphic  Play button. Start playing what is currently on fretboard

graphic   Stop any sound

graphic   Switch between dot types used for representing notes on fretboard (dots only,notes, or degrees of major scale)

graphic  Shows current fretboard in full screen