In the interaction between the child and the adult, interest can be a significant motivational initiator of activities. Systematic monitoring and development of the interest in music activities enables the teachers to influence the preschool children in forming a positive attitude towards the art of music. The research involving preschool teachers, children at the age of five to six and their parents, was conducted in order to determine the interest of preschool teachers and children in music activities. We found that the teachers showed greatest interest in singing songs, playing instruments and listening to music. The children's favourite activities in kindergarten were movement to music (dancing), singing songs and playing on instruments, namely activities where they could take active part in the educational process. The parents reported that at home the children preferred most to listen to music, to sing songs and move to the sounds of music, and less to play on instruments and to be creative in music. The development of the children's interest in music depends on the teachers' expression of interest in music activities, on the choice of music activities and music contents and on the experience in the music environment of the family.