UPDATE: deQuencher has been rewritten in C++ with some new and cool features. Check it out here: tinyurl.com/494jbp

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I've been working on this tool for the last couple of months.

Basically deQuencher is a live improvising and sequencing tool that enables you to sequence out of phase timed events between objects that you put on screen, and those objects interact with each other based on proximity. The frontend is programmed in processing, and audio engine is supercollider(in fact you can add a couple of lines of code to your existing synth definitions and they will be controllable by deQuencher).

The objects can be sound generating synths(parameter-trigger in, audio out), fx synths(audio in, audio out), parameters, and triggers(t_trig type) and they can send their datas to each other when they are close enough.

It records your mouse gestures for setting timed sequences, once a gesture(with any duration and complexity) is recorded, you can alter it(for now, scale movement, scale bond distance / proximity threshold, frame clipping for syncing gestures and adding noise to movement) to suit your realtime needs.

Sources and documentation here: tinyurl.com/494jbp

PS: I recommend you download the original video file from the downloads section at bottom right. you can see the text more clearly then.