If ZynAddSubFX had a control for changing the speeds of all LFOs within one instance, we could make the famous "Leslie" slowdown effects for Hammond Organ patches (like this one
) within it from LMMS. And some other cools stuff too.
Right now there are controls for Bandwidth, Portamento, FM Gain and... filters!
I guess adding another one for LFOs shouldn't be too hard - I guess it could work the same way the global filter control does.
Is there someone capable of coding this for ZynAddSubFX/LMMS?