If you listen through the headphone output with headphones on by setting "Simple Pitch" under ....( Pitch/Synth---Mono/Simple Pitch.)..to
Interval=-1
Cents=0
Delay=0
Shift Level=100%
Mix=100%
Level=0db
Shifting from E to Eb sounds right when playing chord but not through 1/4" or XLR
I just tried the Pitch Wham and same thing only sounds right through Headphones