Carl Lumma wrote:

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2. Kaleidophon (Carter Scholz): Mind expanding! In fact, regarding recent

talk about the tonality diamond, I believe this is a rhythmic diamond --

all circular permutations of a rhythm played simultaneously. [Carter,

please straighten me out if this is not the piece.]

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Hi Carl. Kaleidophon is a kind of functional canon. Not an exact canon,

because the note durations are taken at discrete points of a continuous

function (a sine function, in fact). This "sampling" of the function

(at whatever time a new note is needed) leads to rhythmic values in each

voice that are not exactly canonic even though the phase-shifted functions

*are* strictly canonic. Or something like that ....

I suppose the piece is a kind of "algo-comp" though I don't think of it

that way. More like process music, where the piece is completely

determined and constrained by the process. early Reich, Lucier, etc...