I recently started to think about an application with this module, though I didn't try it yet. I summarize the idea.

Let's say that one is playing solo guitar notes and aims at reproducing the concerned gates, envelopes and pitches just “delayed”, that is after a certain elapsed time, something between 600ms and 1500ms. The result would be kind of echoes and shades taking place with different sound and timbre. 

I have found few modules which can perform the time shift of gates and/or triggers, but cannot figure out how to time shift the envelopes (!) 

Another issue would be the conversion audio pitch --> V/Oct: I wasn't able to find anything on modular grid. I usually used the Korg MS-20 ext input interface for this purpose but in some circumstances it would be more practical to keep everything within the modular and use the Korg module for other purposes. 

Any hint is much appreciated.

Best,

Diego