With the 0.4.x firmware and new local routing abilities, I feel like now is a good time to make a humble request for a new basic unit: the tuned delay line.
Delay lines are of course used all over in DSP, but are particularly useful for stuff like resonators, karplus-strong, and other physical modeling techniques. These sorts of things are currently possible, but not in a pitch-accurate way that tracks V/oct. To quote @odevices himself:
I’d love to turn the new feedback’y glory of 0.4.x into a tuned instrument. Bonus if it can do some kind of magic to automatically compensate for the 128 sample buffer delay.