Denis discovered acrobatics at the Chambéry Circus School. He enjoyed that discipline, but developed a preference for juggling… In 2000, Denis joined the creation studio at the Lido in Toulouse and created Le Petit Travers in a duo with Nicolas Mathis, a show which toured widely. He then devoted himself to extensive training in instrumental composition, which he continued at the CNSMD in Lyon before joining IRCAM and its composition department, graduating in 2017. Following Pan-pot ou modérément chantant which he co-authored in 2009, Denis collaborated on the musical arrangements for NUIT in 2015, took over a role in Dans les plis du paysage and is regularly involved in the cultural outreach activities organised by the Collectif Petit Travers.