As composer, devisor, collaborator and improviser, Cathal has performed and recorded with many leading Irish ensembles and performers including the ZoiD, Fuzzy Logic and ICC Ensembles, Kai Big Band, Dublin City Jazz Orchestra, Awkward Silence, the Rise Saxophone Quartet and Common Tongue. He has collaborated with Ian Wilson on a number of projects, performing with the RTÉ Vanbrugh String Quartet, Hugh Tinney, Mia Cooper, Cliona Doris, Ian Wilson, Lorcán Mac Mathúna and visual artist Gareth Kennedy.