Reply to How to make sounds morph in Ableton

This is a pretty newbie question but I'm having trouble coming up with a straightforward answer. Basically I want to know how to make sounds morph throughout a track. For instance, making the hi hat subtly change sound so that it doesn't just sounds like a cop paste throughout the whole track. The only solution I've come up with is making a copy of the track and changing it a little bit over and over, but then I end up with like 10 different hi hat tracks for a simple hi hat. Is there any way to change the dry/wet of a reverb effect throughout the track in a mixdown? I would see how you could do it in a performance setting live, but I'm confused about how to do it for a mixed down track.

Sorry if this didn't make any sense