Renoise could have a 3rd party pianoroll program, which gets clipboard data to paste notes and also copy pianoroll notes which you can paste to renoise. Also vsti plugins that have portamento or glide parameters could be assigned to pianoroll using automation device parameter (basically commanded by effect column) with entering a command number in pianoroll. Then you just
click mouse to glide notes. Right click for slide icon would give you possibility to enter exact glide amount. Other, like cutoff and reso can easily be edided in renoise so, there woudld not be a need for such automations in pianoroll program. Instrument number should be entered in pianoroll as well.
Chords are as easy to implement as well by xml clipboard data. Only minus is that you can’t listen what notes you are inserting in pianoroll, unless you just enter notes in renoise and paste them into pianoroll, add slides and tweak notes a bit.
So, basically it’s 3rd party pianoroll with note slide. Other features could be added like note velocity. Also switching vsti synth between poly and mono modes which works with command line parameter through automation device. This is done automatically if user has set detect poly and mono notes, since not all synths support poly glides.
Fruity + rewire works great but not everyone uses fruity for acids and stuff.
What do you think? Should I dump this idea or try to make it?