The attached patch (Sharp Synth)behaves very differently on yoshimi to
zyn. The notes C1 to F1 and C2 to F2 are extremely dull sounding, and
the overall level is higher.
I can't really pin it down, but my suspicion is that yoshimi is
ignoring the resonance setting and applying it's own strange one.
--
Will J Godfrey
http://www.musically.me.uk