ParticleNodeSequencer is a project mainly written in ActionScript, based on the View license.
An experimental particle based audio sequencer, created in Flash using Tonfall; the new open source AS3 audio engine produced by Andre Michelle
Full information and a demonstration of the sequencer can be found here
This sequencer is based around physical nodes, which connect to produce a variety of tones. There are two types of node, a neuron and a receptor, which are connected by synapses (apologies for the trite analogies). Neurons fire periodically, and if within a certain proximity of a receptor, this message is sent at a fixed speed along the bridging synapse. When the message arrives, the receptor is activated and responds by queuing it's individual tone within the audio engine. Each receptor owns a randomly assigned note, and each neuron a randomly assigned octave; therefor a receptor will play it's note in several different octaves depending on which neuron causes it to fire.
The download includes the builds of Tonfall by Andre Michelle and Minimal Comps by Keith Peters that I'm using.