Neformaliojo muzikinio ugdymo poreikiui patenkinti ir jo tikslų įgyvendinimui užtikrinti svarbu ne tik galimybė pasirinkti interesus atitinkančią ugdymo įstaigą ar mokymo programą, bet ir sudaryti sąlygas vaikui džiaugtis pasirinkta muzikine neformalia veikla. Deja, neretai susiduriama su sėkmingai vaiko neformaliai muzikinei veiklai trukdančia motyvacijos šiai veiklai stokos problema. Kadangi vaiko motyvaciją lemia ne vienas veiksnys, susijęs su visa vaiko aplinka, pedagogui ypatingai svarbu į neformaliojo muzikinio ugdymo procesą įtraukti ir mokinių tėvus bei su jais bendradarbiauti. Todėl darbe nagrinėjamos pedagogų ir tėvų bendradarbiavimo galimybės įtakoti vaiko neformalios muzikinės veiklos motyvacijai poveikį darančius veiksnius. / In order to meet the need for musical education and to ensure achievement of it’s goals it is important not only to have a possibility to select an educational institution or an educational program meeting personal interests, but also to create conditions for a child to enjoy the informal musical activity selected. Unfortunately, very often the problem is encountered related to the lack of motivation in a child for informal musical activity and preventing him from successfully involving into such activity. Since motivation of the child is predetermined by several factors related to his whole environment, it is particularly important for a pedagogue to also involve children’s parents into the process of informal musical education as well as to cooperate with the latter. Therefore, the paper analyses possibilities of cooperation between pedagogues and parents in influencing the factors affecting the child’s motivation for informal musical activity: personal characteristic features of the child, family, pedagogue’s personality and competences, contemporaries.