I am thinking on musical instrument making for last 30 years and I think I want to make a instrument for masses.
Here it is.
You can record a sound and turn it in to digital negatives with transforming sound in to raster image like an cine film sound recording or turntable long play engraving in two dimension.
Than you print this thin strip 4 different record parallel and 6 mm distance on to long 100 cms digital negative.
Than you unroll and 120 film and contact print the digital negative on to film.
Pyro developed and an sound recording relief resulted.
You take that film and adhesive on to 6 cm wide metal , stone , plastic , plywood plate.
Than you adhesive an contact guitar microphone on to plate.
You can play the instrument with friction your fingers on to relief.
You can record synthesizer to human voice to notes to a bach fantasy on to strip.
Slower or faster you friction your fingers on to relief , you can play a bach fantasy slower faster or part by part or faster you fricton your fingers , you can change the pitch of human voice recording.
Mustafa Umut Sarac