Hey thanks both of you for the feedback so far!
They did perform it live, but I didn't get a good recording of it and there were still more mistakes than I would've been happy with putting as a proper remix.
Duly noted. In theory though, some amount of looping more or less has to happen. For example, in my piece the vibraphone plays much of the same thing, with a couple variations, the whole time. If I get your implication right, though, you're referring more to the blatant copy and paste mechanic than looping something while changing something else. Right?