This has always been my least favourite part when it comes to making music and I've mostly given up on trying to do it. Do you have any advice on how to make loops sound okay when you're working with sounds that have a long release time/lots of reverb?
Okay I know this is a very old comment and I am replying many years later, but here's something you can do, in case anyone reading this later has the same problem.
So let's say you have two sections, A and B, A is the intro, which doesn't loop, and B is the loop.
If you make an audio file that is just A + B , the problem is this:
When you get to the end of B and loop back to the beginning, that beginning part doesn't have the reverb from the end of B.
So make your audio file like this
A + B + B
and loop the second B.
Or, alternatively, you can make it
A + B + a little bit of B
and just move the section you loop over a little bit.