Not many people can claim to have played in front of 2.5 million people. Frederick Rousseau can. He was up on stage with Jean Michel Jarre at the Paris La Defense concert in 1990 – at the time, the biggest gig in the world, writes Dave Robinson. A successful musician and composer in his own right, Rousseau has spent the last nine years working with IRCAM, the renowned contemporary music and audio research institute located beneath the Pompidou Centre in Paris. Rousseau brought third-party developer FLUX into the frame: FLUX is converted IRCAM’s creations into tools suitable for the modern workflow, as well as marketing and selling the products. The first three IRCAM Tools plug-ins are called Verb, Spat and Trax.