Joseph Louis Wilfrid Pelletier, was a Canadian conductor, pianist, composer, and arts administrator. He was instrumental in establishing the Montreal Symphony Orchestra, serving as the orchestra's first artistic director and conductor from 1935 to 1941. He had a long and fruitful partnership with the Metropolitan Opera in New York City that began with his appointment as a rehearsal accompanist in 1917; ultimately working there as one of the company's conductors in mainly the French opera repertoire from 1929 to 1950. From 1951 to 1966 he was the principal conductor of the Orchestre Symphonique de Québec. He was also a featured conductor for a number of RCA Victor recordings, including an acclaimed reading of Gabriel Fauré's Requiem featuring baritone Mack Harrell and the Montreal Symphony Orchestra and chorus.

The Montreal Symphony Orchestra is a Canadian symphony orchestra based in Montreal, Quebec, Canada. The orchestra’s home is the Montreal Symphony House at Place des Arts. It is the only orchestra in the world that possesses an octobass.