Presented on February 28th in Montreal's Old Port, composer Jean-François Laporte's harbour symphony is considered a musical innovation in every respect. Composed for boat horns and train whistles, this musical symphony forced Laporte to develop manufacturing techniques that would allow new and transformed sounds to be added to the instruments' range. Ordinary fog-horns and train whistles were turned into full-fledged musical instruments. What’s more, performing this symphony called for 43 musicians, who had to resort to some unorthodox techniques and use a special musical notation system created by the composer.