The 1.0 version of Circuli for Mac was available as a free download on our website. Circuli for Mac is included in Audio & Video Tools. The actual developer of this free software for Mac is DashboardMusic.
From the developer:
Circuli is a generative sound generator that helps you create ambient sound scapes to listen and have fun right in your Mac OS X Dashboard.
Main features:
-Circles grow at a constant rate.
-No two circles can overlap.
-Bigger circle pushes and shrinks smaller circle when in contact.
-A circle “pops” and makes a sound when its boundary intersects with the center of another circle.
You may want to check out more Mac applications, such as SongScreen Liquid, which might be related to Circuli.