Site hosted by Build your free website today!

Microtonal Keyboard (Touchboard)

This is an old design of a microtonal keyboard designed in 1850 by Mr.Bosanquet in London.

A Touchboard of this kind could be easily constructed by using a 1V/Octave resistive voltage divider with 1/48 increments. However, due to the resistors tolerances varying wildly,  the pitch  would 'nt be entirely correct. A better approach - and much more expensive- would be to have one trimpot per key : each key could then be tuned ,according to any  harmonic or inharmonic scale , such as in an unquantized 48 steps sequencer.