Bolduc never had any formal music lessons, and developed her own style under the influence of her father's teaching and the musical traditions of Irish folk music and Québécois folk tunes. Her songs tended to be happy and comical with lively rhythms. Her self-written songs often used existing melodies from folk tunes or dances, combined with lyrics she wrote herself. For instance, she wrote the song "Les Cinq Jumelles" about the Dionne Quintuplets, which was set to the tune of "Little Brown Jug". In other cases, she adapted popular contemporary American songs.