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(lfo type)_freqchanaft

LFO frequency change when channel aftertouch MIDI messages are received, in Hertz.

Can be negative, and according to the SFZ spec the allowed range is -200 to 200, which could be used to push LFO frequencies into audio frequency range, allowing AM, FM and filter growl. Perhaps that was a typo and it should be -20 to 20, as 20 Hz is the maximum LFO frequency in the SFZ 1 spec.

Examples
fillfo_freqchanaft=10
fillfo_freqchanaft=-20
Name Version Type Default Range
pitchlfo_freqchanaft SFZ v1 float 0 -200 to 200