I tried Impromptu many years ago, but I am now using Extempore, which is sort of its successor by Andrew Sorensen [1]. You can livecode audio and visuals with i

I tried Impromptu many years ago, but I am now using Extempore, which is sort of its successor by Andrew Sorensen [1]. You can livecode audio and visuals with it. It has two languages within it to use: xtlang, a low-level, expressive language that is as fast as C compiled by an LLVM backend, and a Scheme-based language for higher-level magic within Extempore. Great project, super helpful developers! [Edit] I wanted to include mention of the cross-platform, all-in-one executable, GRACE (Graphical Realtime Algorithmic Composition Environment) that may be easier to start with. It has built-in tutorials, and is based on Common Music, Common Lisp Music, and has lots of functionality. The single Windows executable has all of that wrapped inside of it. I used it before Extempore, so now I am using the examples in GRACE and trying to copy them in Extempore to learn Extempore, since they both have language similarities - Scheme/Lisp. Extempore is now easier to use on any platform, since binaries are available; you no longer need to build it yourself. [1] http://extempore.moso.com.au/ http://extempore.moso.com.au/ [2] http://commonmusic.sourceforge.net/ http://commonmusic.sourceforge.net/