another FS trick

[Haible Juergen]

Found another trick with the Frequency Shifter:

* made the internal QVCO track with 1V/Oct (OB-8 -> Kenton Pro-2 -> FS)
* fed the sound from the OB-8 into the FS
* upshift to right stereo channel, downshift to left
* use a monophonic lead sound with portamento

Result: As the input is a single voice, and the QVCO tracks the pitch,
both upshift
and downshift have harmonic spectra. They are slightly different, so
it's a nice
stereo effect. FS tracks almost immediately, but input sound glides in
slowly with
portamento. So you get a glide that starts harmonic and ends harmonic,
but does
real weird things in between. Works best with multiple-VCO / high
harmonic contents
lead sounds.

JH.