Nantel had intended to pursue a singing career, but abandoned these plans after her marriage to Louis-Athanase David, the Provincial Secretary of Quebec, in 1908.
David became heavily involved in supporting the arts within the city of Montreal.
She played an instrumental role in establishing the Montreal Orchestra in 1930 and served on that ensemble's executive committee.
[2] She left that committee in 1934, finding the orchestra's hiring practices to be discriminatory against French-speakers.
[3] She went on to play an important part in establishing the Montreal Symphony Orchestra in 1934 with the help of her husband.