Spicule allows for tracks to be remixed and reworked in a TidalCycles live coding environment. I really like the fact that the live coding environment that allows the user to play with the tracks for free and is a complex remixing tool that has high functionality. It uses the Haskell pure functional programming language and ultimately lets patterns be composed and combined with expressive code. Patterns are represented as functions of rational time, which allows time to be manipulated to create complexity.
I think this project is really cool because it allows for so much user expressiveness. It provides the tools for the user to dissect the provided tracks in such a way that it really becomes their own music, and I think that is something admirable.