Gentle Electric soft machines

This morning, before my morning writing period, I had the idea of recreating some of the analog modules I made during the Gentle Electric analog period as VST/DXI software plugins. The three I was thinking about doing were the "pipe" (an interestingly controllable delay with feedback, which can produce the sound of a reverberant or even oscillating pipe of any size from a whistle to a culvert; the linear control FM audio oscillator, allowing one sound to control the frequency of another in a way that doesn't cause pitch shift, and which can produce a whole range of sounds hard to produce in other ways; and of course the Gentle Electric/AFI pitch and envelope follower, which has had previous incarnations as an analog synth component and a PC plugin card. If I were to do these, I'm not sure yet whether the pitch follower would be best to be live/realtime but monophonic and a bit lower quality, or to do it out of realtime (wav in, midi file out, or something) and allow a lot of computation time to get it really well done. I never got around to making a MIDI hardware version. Would have been nice. Maybe still will someday.