The study explored the influence of environmental catalysts, upon the provision of field specific opportunities for learning, training, and practice, for a sample population of musically involved young Australians. The findings enhance understandings of the conditions in which children's musical aptitudes are developed. Research bases in the fields of gifted education and music education were employed to support the investigation. Components of Gagne's Differentiated Model of Giftedness and Talent provided the theoretical framework for this investigation. Two survey questionnaires, completed by Australian parents (N = 194 and N = 182 respectively), sought information pertaining to the subject child's musical involvements and undertakings. Some details of the musical interests and involvements of the child's parents and siblings were also obtained. Quantitative and qualitative data contribute to an extensive profile of the types of music programs and provisions which support the normative and expert development of Australian children's musical behaviours. Parents' musical interests and involvements appear to have strongly influenced the choice of home- based recreational pursuits for their children. The convincingly articulated, positive, field specific views espoused by Australian parents appear to have been translated into the provision of multiple, simultaneous opportunities for their children to engage with musical undertakings. Notable amongst the data are the structured involvements of young musicians with music composition engagements. The data also indicate that many of the sample of Australian children received high levels of support and encouragement for musical undertakings from parents who were themselves musically interested and knowledgeable. Parental involvements with their children's music lesson and practice related engagements, were found to be characterised by features of deliberate practice. The home-based environments of young Australian musicians were found to be characterised by opportunities for exposure to rigorous and challenging musical engagements, undertaken at an optimally early age, thereby enhancing normative musical development. Such engagements provided the necessary foundation for expert levels of musical skill acquisition. An ascending progression of musical skill development was demonstrated to correspond to increasing age further reinforcing the developmental perspective on the acquisition of musical expertise. Some parents indicate that musical engagement has been pursued as a means of appropriately challenging children exhibiting the cognitive and affective characteristics of giftedness.