who is the composer of this song?
Calixa Lavallée
Introduction
Calixa Lavallée composed the music
when did the lyrics to o canada change In 1990, 2002, 2018 does this song have any relation to the country it is about? Yes - 'O Canada' is the national anthem of Canada.
Calixa Lavallée Calixa Lavallée. Calixa Lavallée
O Canada O Canada O Canada
History Introduction Introduction
The French lyrics of "O Canada" were written by Sir Adolphe-Basile Routhier, to music composed by Calixa Lavallée, as a French Canadian patriotic song for the Saint-Jean-Baptiste Society and first performed on June 24, 1880, at a Saint-Jean-Baptiste Day banquet in Quebec City.  Calixa Lavallée composed the music, after which, words were written by the poet and judge Sir Adolphe-Basile Routh "O Canada" () is the national anthem of Canada. The song was originally commissioned by Lieutenant Governor of Quebec Théodore Robitaille for the 1880 Saint-Jean-Baptiste Day ceremony; Calixa Lavallée composed the music, 
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O Canada [SEP] Introduction
"O Canada" () is the national anthem of Canada. The song was originally commissioned by Lieutenant Governor of Quebec Théodore Robitaille for the 1880 Saint-Jean-Baptiste Day ceremony; Calixa Lavallée composed the music, after which, words were written by the poet and judge Sir Adolphe-Basile Routhier. The original lyrics were in French; an English translation was published in 1906. Multiple English versions ensued, with Robert Stanley Weir's version in 1908 gaining the most popularity, eventually serving as the basis for the official lyrics enacted by Parliament. Weir's lyrics have been revised three times, most recently when "An Act to amend the National Anthem Act (gender)" was enacted in 2018.