D. Andrew Stewart is a composer, pianist and renowned digital musical instrumentalist. A convergence of acoustic and electroacoustic instrumental praxis is at the centre of Stewart's oeuvre. His music is dedicated to exploring composition and performance for new interfaces for musical expression by adapting and evolving traditional praxis. Stewart's work asks whether musical idea – concept, theory, material, technique and means – has kept pace with developments in digital lutherie. 

Stewart’s music has been featured globally by: the Winnipeg Symphony Orchestra, Esprit Orchestra, Penderecki Quartet, Toronto New Music Concerts, Ensemble contemporain de Montréal +, musikFabrik, orkest de ereprijs, Ensamble 3 and ROSA Ensemble. In addition, he has contributed to the field of music technology research through participation at: the NIME, ICMC, Electroacoustic Music Studies Network, Electronic Music Foundation, ACM SIGCHI Conference on Human Factors in Computing Systems, and the Guthman Musical Instrument Competition.