Bart mainly composes for the theatre, cinema and dance performances commissioned by a wide variety of European theatre companies and filmmakers including Belgian TV (VRT), Les Ballets C de la B and the Ars Animación Group España-México.

His compositions show a clear inclination towards the counterpoint of the Flemish polyphony of the 16th Century but applied to modern sound language, with the development of the pieces being based on layer upon layer of horizontal lines. His multifaceted ability means that his style can be adapted depending on the needs of the project and the person commissioning it, but his melodies-within-melodies, as they are often called by non-musicians, are very much his own.