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speculative project: a dj set but your performance is not on the controller, instead you provide electricity using a pedal power generator.
or something more mechanical, a player piano / automaton-like contraption that is designed by the musician and played back through the musician's physical effort.
How much of the 'human quality' of a singer-songwriter, for example, can be replaced mechanically? If the physical effort is tremendous, can it compensate for the disillusionment due to a mechanically delegated task? If the performer was turning the crank that activates the machine? If the performer was biking in order to produce electricity?