Author(s):
* Based on code by Perry Cook
* Additional lines + stereo capability by Atte André Jensen
* Originally adapted to BSB by Steve Yi from code posted
by Atte Andre Jensen to the Csound Mailing List on May 1,
2006
* Depth, min/max frequency widgets added by Atte André
Jensen

The chorus consists of 2x6 delay lines, with random LFO
frequency between min/max lfo frequency.

Note: The input is mixed to a mono signal before fed into
the chorus. This means that although the output is stereo,
any stereo information (such as panning) in the input signal
is lost in the chorused signal.