So far the work is almost complete:
Did what I mainly wanted to. Wanted to rewrite access so that its easily keybindable and has easy access. The remaining issue is due to a audio buffer issue with librubberband and how samples vary depend on the pitch ratio. At the moment the code is quite brittle and won’t work for anything above 48khz. Which is a problem considering FB2K’s userbase (I only had sub 48k samples at the time of development and testing). So need to spend the next few days rewriting things to be more robust for the pitch/tempo DSPs.