From The Glenn Gould Chair Project:
The third piano player to enter into the legend of “piano players with their own chair†was Glenn Gould. It all began in 1953, around a list of requirements that, as we can retrospectively imagine, was very demanding:
* The seat had to be lower than usual and precisely adjustable;
* The backrest needed to be almost right-angled with the seat so that Gould could stay forward instead of sliding back. This is quite different from standard piano chairs, which have their backrest slightly rear leaning (average 7°).
* Finally, the chair needed to be light, strong, easily folding, and easily transportable so that it could travel around the world for concert performances and studio recordings.Glenn Gould’s father, Bert Gould, found a partial answer to these many requirements by taking a model that was quite common: a foldable chair for card players. He artfully modified the seat height by cutting off ten centimetres from every leg. He then screwed into each leg a jack made of belt idler “eye to eyeâ€.
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