Pitchback. A VST I made in 2005. A simplified 3 control pitch-shifter created with delay buffers & feedback. Pitch, tweak, scratch. There are others.. I might dig them up. 32-bit VST only.. so you need a host that has native 32bit support (Ableton doesn’t, most shit only on MacOS doesn’t, many others do, e.g. Bitwig, Buzz/PVST, Renoise, etc.) or a 3rd party wrapper like jbridge.