Hacked together music instrument mash-up combining a guitar and a glockenspiel, with added projection-mapped lighting on the strings (ssing Arduino, openFrameworks, and MadMapper) - by Aaron Sherwood (video embedded below):
Glockentar from Aaron Sherwood on Vimeo.
The Glockentar combines a glockenspiel with a guitar.
Each time a string is plucked a glockenspiel bell is struck with a solenoid, and a beam of light is projected across the length of the string.
More at Aaron’s blog here