This article aims to describe the psychological well-being of 164 elementary school students in grades 3 to 6 enrolled in an Arts-study program in music in Quebec. The results highlight significant differences according to gender and educational level of the participants. Among other things, girls reported more pleasure and motivation than boys. Grade 6 students, for their part, reported feeling less pleasure, satisfaction, and motivation, and having lower self-esteem and a more negative perception of belonging than those in grades 3 and 4. The origin of participation in the program (suggestion from the parents or request from the child) moderated these effects. Therefore, it seems that specific attention must be paid to the well-being of boys in grade 6 whose parents suggested they take part in such a program.