thanks eric. here's what i pulled out of the original post by way of a description -
the patch used in this clip basically consists of
compressor>amp>cab>volume
the compressor helps to even out the dynamics and increase sustain. the amp can be any set to clean sound really
this then feeds a reverse delay and a stereo delay both set to long delay times and in parallel with the main chain
the stereo delay feeds two crystals blocks in parallel, set to octaves. everything then feeds a quad tap, chorus and plex detune. set the crystals to other intervals for a bigger sound, but watch out for non-diatonic notes that might creep in as you play different intervals in the parent scale.
pan everything around to taste and be aware of the mix levels on each block - you may want to send some of the dry signal into the crystals, or not...it's up to you.
try adding filters tied to a slow lfo, phasers, flangers, whatever you like, to give the delays a bit of movement and colour
just a quick note on delay times - you can sync all the delays to the master tempo, but you may find you lose depth, as some of the delays land right on top of others. it can be better to keep them unsynced and set to delay times that never overlap. this can help increase the "density" of the loop.
attach the feedback parameter of the main delay(s) to your footpedal, so you can control it. handy if you want to fade out quickly when you're finished. for a 10 second loop, a feedback level of about 65% will give you density without clutter.