Driven by experimentation, Castonguay investigates electronic audio circuitry as a physical process and phenomenon that leaves a palpable, audible trace. Her approach to sound and DIY electronics is playful, practical and organic: she disassembles and re-purposes small, obsolete, barely audible machines to reveal the resonance, glitches and random sounds unexpectedly hidden within. Her work has been presented in Montreal and abroad, such as the Festival International Montréal/Nouvelles Musiques, Biennale Internationale d'Art Numérique, Perte de Signal, Eastern Bloc, Fondation Molinari, Centre Fokal (HT), STEIM (NL). She has performed in various festivals such as Sight & Sound, PirateBlocRadio, Ibrida Pluri II, Printemps Numériques, Metarythmes, Instruments Make Play (NL), Tsonami Sound Art Festival (CL), Mutek and most recently for Amplify at Espacio Fondación Telefónica in Lima (PE). She is a member of the artist center Perte de Signal.