Calixa Lavallée was a Canadian composer, pianist, conductor, and music educator, best known as the composer of the music for the Canadian national anthem, 'O Canada'.Born in Verchères, Lower Canada (Quebec).Exhibited musical talent early, touring the US and Latin America as a pianist.Served in the Union Army during the American Civil War.Studied music in Paris.Returned to Canada, composed 'O Canada' in 1880 for Saint-Jean-Baptiste Day.Promoted Canadian music and founded national music institu...