Comment 2 for bug 1299035

This can be also used to fix Bug #1398299 "pitch knob is too coarse" by adding an additional pitch knob with finer or coarser scale.
This way we need no extra space in The GUI and controlling by Controllers with effect region is possible as well.

We have also not found a place for the helpful sync_key control. This can be also made accessible from an effect Rack.

In a later version, we may also add additional harmonic mixing controls, described here:
http://www.mixshare.com/wiki/doku.php?id=mixing_harmonically

I am thinking about an COs only implementation that just, passes values to the normal deck scaler. This way it will not consume much extra CPU.

For channels without a scaler, we may add a own scaler instance inside the effect.

Anny thoughts?