After classical music studies (cello) at the conservatoire of Montauban and Montpellier and a Masters I in musicology at the Paul Valéry University, Julien Guillamat delved into music composition at the University of Birmingham (England), where he obtained a PhD in electroacoustic composition with Professor Jonty Harrison.

Freshly out of a three year long residency in composition at the Montpellier Occitanie national Opera-Orchestra (OONM), he composes music following the French musical tradition, and the grain, the timbre and the color of the sound form the basis of his research. Co-founder of the Birmingham Laptop Ensemble (BiLE), he has worked with Nathalie Stutzmann, Cyrille Tricoire, the ensemble Orfeo 55, Asko|Schönberg, the Welsh National Opera, the Birmingham Contemporary Music Group, Music Theatre Wales, SOUNDkitchen, OONM and the REPertory Theatre among others. He gained the composition prize at the Summer Festival of Music and was a finalist in the International Composition Competition METAMORPHOSES 2010.

Space is a fundamental element in his work and he performs and spatialises his own and other composers’ work around Europe on the acousmonia of Musiques & Recherches, BEAST or KLANG! acousmonium. In 2010, Julien obtained the 1st prize in the performance competition L’Espace du Son in Brussels. He has participated at numerous international conferences and festivals such as BEAST (Birmingham), Sound Around (Copenhague), Inventionen (Berlin), NIME 2011 (Oslo), Laptop Meet Musician (Venise), Red Sonic (Londres), L’Espace du Son (Bruxelles), Radical dB (Saragosse), Komposition und Musikwissenschaft im Dialog (Cologne), etc.

After attending the 2012 Academy of IRCAM (Paris), Julien returned to France and founded the loudspeaker orchestra KLANG! acousmonium. In 2014, he became artistic director of maison des arts sonores, a music creation structure based in Montpellier and created the electroacoustic music festival KLANG!

Julien taught composition at the University of Birmingham and now teaches performance at the Royal Conservatoire, Academy of Arts in Mons (Belgium). He has been commissioned by The Circles of Influence, the Wellcome Trust, the National Education Ministry of France, the LVMH group, the OONM and the Barber Institute of Fine Arts. He is regularly invited to give master classes and seminars at conservatoires and universities in Europe (Köln, London, Birmingham, Dijon, Liverpool, Brussels, Strasbourg, Toulouse, Montpellier, etc.). Julien actively collaborates with other artists and is a member of the Déviation(s) ensembles and founder of the Europa Meta-Orchestra and ELEM, . Julien has been selected to be the composer in residency at TOTEM(s) 17-18 at Centre national des Écritures du Spectacle, for his opera Géante Rouge with Gwendoline Soublin (author).