tau of n
flute, clarinet, vibraphone, cello, piano
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Comments: τ(n) (or "tau of n") was composed for the new music ensemble, Thamyris.
It was first performed by that group in 1992 in a concert at Spivey Hall.
The mathematical expression τ(n) is a function encountered in number
theory. Also called the “divisor function,” when applied to a positive
integer, τ(n) produces a result which is the number of positive divisors of
that integer. For example: the numbers 1 and 3 are all of the possible
positive divisors of 3, so τ(3) = 2. Likewise, 1, 2, 5 and 10 are all of the
positive divisors of 10, so τ(10) = 4.
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