Nursery adaptation period represents a big and long-term challenge for all the participants included in the process. This thesis presents different reactions of nursery school children to adaptation period, the duration of adaptation period, the role of preschool teachers and the role of musical activities in the adaptation period. The aim of the study was to examine the benefit of musical activities during nursery school adaptation period, to examine the preschool teachers' opinions about the reactions of nursery-aged children to musical activities during adaptation period and to examine which musical activities the preschool teachers consider useful during adaptation period. The survey was conducted on a sample of 50 kindergarten teachers in Osijek during June and July of 2022. The research showed that preschool teachers often conduct musical activities in nursery educational groups during adaptation period, that the educators believe that musical activities can influence the process of nursery adaptation period and that they should be an integral part of the child's experience during adaptation period. Preschool teachers have seen the benefit of conducting musical activities during adaptation period in adopting daily rituals, reducing reactions caused by process of adaptation and achieving easier communication with children.