I’m using it almost exactly this way, except with one external mono controlled by an Octa MIDI channel. Have it set up like this:
T1: Kick
T2: Clap/Snare
T3: Closed HH/Perc
T4: Open HH/Perc
T5: Lead synth
T6: Vocal/sample
T7: Loops/Slicing
T8: Dedicated looper track for transitions
Synth is running direct in so no thru channel or effects. Also no master channel… Wanted to maximize the amount of channels I had for playing back samples, but would be nice to have Thru effects and a Master channel as well.
Using the transition trick to transition between songs, so I have the first 3 scenes set up as S1=T1-7, S2=T8, S3=T1-8. I’ll switch over to the new pattern, and use the filters on the looper track like I would in a DJ set while bringing in the other elements from the new pattern. Rinse and repeat! Then add in all your effects per channel, flesh out your scenes, add LFOs, and play with mutes and filters, and you have more than enough to keep a pattern interesting for a few minutes.
I’m playing a mix of brand new material I made on the Octatrack and remixes of my own songs that I made by chopping up my stems I loaded in. There are obviously some limitations and headaches (generally associated with the OT), but I’m not sure if there’s another device that can pull this off standalone if you’re dead set on smooth DJ-like transitions.
So TLDR, it can for sure be done!