In Romain Dugelay's artistic career, the Kouma trio created in 2010 with Damien Cluzel (guitar) and Léo Dumont (drums) holds a pivotal position. It is indeed within this ensemble that he developed and affirmed his musical language, itself a melting pot of 3 families: a contemporary writing, drawn from musicians such as S. Payen, F. Cassol or G. Orti, the taste for improvisation transmitted by J. Cohen during his studies at the ENM in Villeurbanne from 2001 to 2005 and the rock and generous energy of the current music scene that he has experienced during many creations and organizations conceived within the Grolektif, of which he was a founding member in 2004 and artistic coordinator from 2013 to 2017.
Thus Kouma allows him to synthesize these various experiences, the matrix of creations that animates him today; on the one hand the ensemble Polymorphie for which he composes around poetic texts and the creations "Voix" "Cellule" and "Claire Venus" and on the other hand the Franco-Colombian ensemble Pixvae for which he arranges pieces of the traditional Colombian repertoire: for sextet as on the ensemble's first recording, for large ensemble by mixing electronic devices and traditional instruments as on the creation "Kaixu by Pixvae" or more recently for the creation "CALI" by collaborating with seven Colombian musicians.
Beetween 2016 and 2019 he has also been a member of the Mona quintet, directed by Elodie Pasquier, where he takes his place as an interpreter and improviser.
Between 2008 and 2015 he participated in the Big Band Bigre as a composer, arranger and performer. He is responsible for writing part of the repertoires "Les icebergs aussi partent en vacances" (2012) and "Tohu Bohu" (2010).
In recent years he has also been heard with the April Fishes quartet with Manu Adnot, Adrien Dennefeld and Sylvain Darrifourcq, drummer Rémy Kaprielan's project, The Windmill with David Lewis and Didier Havet.the digital art project "CT4C" with Romain Constant, the Diagonal ensemble, directed by Jean Christophe Cholet, the JPOA directed by Christophe Monniot, saxophonist and composer Stephane Payen, the Shining Bright Today project, as interpreter and arranger, Denis Badault, Fabrizio Cassol, Guillaume Orti, Geoffroy de Masure, l'étranger Théatre et la création interdisciplinaire "Au Coeur", Médéric Collignon, the Canadian ensemble IKS, Andy Emler, or Christophe Lavergne.
At the end of 2017 he decided to set up his own artistic company, the Compagnie 4000, to support his artistic proposals.