Many thanks to Peter Wielk of Horizontal Productions for the great care he has
put into it's restoration.
The second disk drive (from the top) loads the operating system (system disc).
The top disk is for your sound/sequence files.
This is the rear of the mainframe.
Some closeups. Key start ignition.
And yes, the light pen works. Made in a time before there were mouses (mice) or ipads.
It still amazes me.
The Music Keyboard. It's constructed from white painted wood.
These are pics of the rear of the music keyboard.