A Mexican-Canadian composer, Alejandra Odgers holds a double bachelor's degree in oboe and composition from the National School of Music in Mexico. She subsequently obtained a master's and doctorate in composition from the Université de Montréal. Her teachers include Mario Lavista, Arturo Márquez, Francisco Viesca, Paul Barker, José Evangelista, Alan Belkin and   Jean-Jacques Nattiez.

Odgers has composed over fifty works, including a dozen for orchestra. Her compositions have been played by several orchestras in Mexico (OSN, OFCM, OFUNAM, OSX, OSCCH, OSIPN, etc.), the Orchestra of North University (Paraguay), Montreal’s University Orchestra, Chamber Orchestra MUSAIC (Manitoba), the Orchestre symphonique de Longueuil and the Orchestre Métropolitain (Montreal), the latter commissioning a piece as part of the festivities surrounding the 375 th anniversary of the city of Montreal, and a second one for the inauguration of Espace 67, which was premiered on June 2019, conducted by Yannick Nézet-Séguin.

Her music has received numerous awards, such as First prize in the nation-wide competition, « La música popular mexicana en la Intimidad de la Música de Cámara », and the composition competition of the Orchestre de l’Université de Montréal. She also received the Prix de création en arts de la scène in the 2007 Gala de la culture de Longueuil and won the national competition organized by the Asamblea Legislativa del Distrito Federal, which commissioned a work in homage to the victims of the 1985 earthquake in Mexico City. As a winner of two contests organized by the Consejo de la Música en México, she represented Mexico at the International Rostrum of Composers in Vienna (2005) and in Paris (2007). She has received grants from the Conseil des arts de Longueuil and was a member of the Sistema Nacional de Creadores de Arte of the Fondo Nacional para la Cultura y las Artes (2011-2013) and again since 2018. Also, she was a finalist for the Charles Biddle Prize in 2017.