KTGranulator is a free delay line granulator available as a VST effect plugin.
Server 1 Afreecodec
A 4 tap delay with filter and saturation.
An ultimate MIDI FX arranger for SONAR, Cubase and Finale
SnakeFur can serve as a mastering plugin.
Chordzigila is a guitar tuner, chord finder and jam-ahh-long program.
It can avoid that problem by separating the bass and treble frequencies.