Intriguing organic particles. I am guessing the project was made with Processing, as a lot of Koblin’s work in this style is.
From Aaron Koblin‘s website,
Software created … for a perfomance with the Brucknerhaus Orchestra at Ars Electronica in Linz, Austria 2008. Orchestra conducted by Dennis Russel Davies.
Sample footage with music from Dopplereffekt – “Hyperelliptic Surfaces.” Photos at Ars Electronica by Julian Bleeker.