Here I explain that one section in Starfish where it keeps getting faster but somehow returns back to its original tempo. The way I did this was quite easy and could be done in almost any DAW. If you want to hear some music that slows down to reach a faster, more upbeat section, type "langgam jawa" into youtube and you can find hundreds of examples. I've heard Autechre and Aphex Twin tunes that use Risset rhythms also.