The interesting thing about making so called stochastic or randomly generated music is it’s very difficult! Of course John Cage was the man and I know he must have really considered his art.
The difficulty is in the making of the initial choices that will produce meaningful results. Of course today the computer is the tool of choice for this task and, after much research, I use a program called ACToolbox. Having tried the ‘plug and play’ variety I quickly felt that much more control was needed, which is kind of ironic!
But none of it is really random because the initial choices so affect the outcome. Of Imaginary Landscape no4 Cage said:
“It is thus possible to make a musical composition the continuity of which is free of individual taste and memory (psychology) and also of the literature and ‘traditions’ of the art. The sounds enter the time-space centered within themselves, unimpeded by the service to any abstraction, their 360 degrees of cricumference free for an infinite play of interpenetration. Value judgments are not in the nature of this work as regards either composition, performance, or listening. The idea of relation being absent, anything may happen. A ‘mistake’ is beside the point, for once anything happens it authentically is”
But one look at the score and you soon see all was not random:
In the composition for 12 radios, 24 performers, and director, two performers each operate radios whose kilocycle, amplitude, and timbre changes are notated.
Now John might have generated the score using ‘The Book of Changes’ but as always the question is of the limits of control. Or should I say the subtlety of control.
http://www.andypink.co.uk