This a specialised Chrome Web App that lets me use a Peak Guitar Hero controller to play a Yamaha QY100 live via a UXC-16 Midi controller and LPK25 midi keyboard to set the song key for the chord progressions.
I use the QY100 to provide live backing music to play the RealGuitar software from Musiclabs
It is based on the GuitarHeroClone GitHub project by Aric Parkinson
It uses the chord to button mapping shown in the screenshot below.