In this video, Daniel Kastner demonstrates how he uses a Korg MicroKorg as a guitar effects processor. The same process could be used with other instruments, too.

Topics covered include:

Chain details: 0:35
Global audio thru (clean out): 0:56
Initialize and setup: 1:21
Get sound to play: 2:03
Tremolo sound: 2:10
Sound ready thru: 2:40
Delay walkthrough: 2:44
Slapback sound: 3:09
Digital delay sound: 3:50
Runaway feedback: 4:11
Post rock feedback 4:42
Cross Delay (not chorus, my bad): 5:33
Flanger: 7:42
Chorus: 8:29

Signal chain:

Fender HM Strat
Strymon Timeline
Korg microKORG
Traynor TS-50B