gibberwocky is a set of environments for music programming and live-coding performance. The gibberwocky.max package provides live coding controlling Max/MSP/Jitter and Gen. Easily create looping sequences, transform patterns over time, and dynamically create Gen synthesizers and modulation graphs using a JavaScript client that runs in the browser.
The client is also available online at http://gibberwocky.cc/max/
For the latest stable release, search for "gibberwocky" in Max's package manager.
For the latest development build, download the package from the development repository and place into your Max Packages folder. (On Windows, My Documents/Max 7/Packages, on Mac, ~/Documents/Max 7/Packages), then restart Max.
Once installed, simply create the object [gibberwocky] and then open the associated help file to get started.
http://gibberwocky.cc/reference/
Note that this is a reference for all three gibberwocky systems (gibberwocky.live, gibberwocky.max, and gibberwocky.midi); they share many objects in common in addition to having their own unique affordances.
Read the Cycling '74 article about gibberwocky.
Outside of the Max help patcher, there are a bunch of included tutorials in the browser-interface to get you started using gibberwocky.
Feel free to report issues & feature requests here