dser length array

Demand rate sequence generator.

array  - array of values or other ugens
length - number of values to return

> do { a <- dser 7 (mce [1, 3, 2, 7, 8])
>    ; let { x = mouseX KR 1 40 Exponential 0.1
>          ; t = impulse KR x 0
>          ; f = demand t 0 a * 30 + 340 }
>      in audition (out 0 (sinOsc AR f 0 * 0.1)) }