Shuriken.se has released Eckel - a MIDI-generating VST that creates rhythmic music based on the Euclidean algorithm:
The Euclidean algorithm (which comes down to us from Euclid’s Elements) computes the greatest common divisor of two given integers. The structure of the Euclidean algorithm may be used to automatically generate, very ef?ciently, a large family of rhythms used [...]

Intermorphic has announced that Mixtikl - its multiplatform music software - is now in beta. 
Mixtikl looks like it will be a very interesting app, with mobile support and generative features. 
Here are the details:

Mixtikl is open: Use your own content, or from in add-on Tiklpaks.
Capture / mix / work on content on the move on your mobile.
Finesse [...]

I’ve written several times before (tripping the universe, 3d acoustic rendering, interactive 3d holograms) about virtual music worlds - generative 3D ambient worlds, where your exploration and interaction changes the music you hear. 
Visual Space Music is an example of that futuristic music experience I’ve been talking about.
It’s “a musical instrument, a unique space-based arrangement tool, [...]

Over at CDM, Peter Kirn turned me onto Hans Kuder’s tiction - a new visual music performance/sequencing application.
Tiction is a flexible, nodal music sequencer created in processing. You can see it in action in the video, above. 
Each node represents an event, and a connection from one node to the next triggers the next event after a [...]

This video from Zonkout demonstrates a self-generating modular synthesizer (Blacet+Modcan) patch with camera-less video feedback, performed live.
via Matrix

Last year, we brought you some great video of game creator Will Wright and Brian Eno on generative systems.
Here’s the whole enchilada - their Long Now discussion of Spore and generative music and gaming.
They touch on all sorts of topics, but it includes great discussions of generative processes and ambient music, fractals, compression [...]

The Sound of eBay is a net art project by Ubermorgen that translates scraped eBay user data into electronica music.
Here’s an example - generated from eBay user basketofkittens:

According to Ubermorgen - “The Sound of eBay is the affirmative high-end low-tech contribution to the atomic soundtrack of the new peer-to-peer hyper-catastrophic shock-capitalism.”
Note: the site includes 8-bit [...]

Scott at Bitnotic sent us some info on their new generative ambient music application, chill.
chill 1.0b1 is a generative ambient music program for Apple Macintosh computers that creates infinitely varying songs in a ambient/chill out style.
Songs played by chill can be saved in AIFF, Wave, and MIDI formats. Songs are royalty-free and can be used [...]