This research study considers the effects of the implementation of a mobile application designed for use during music students’ independent practice sessions between weekly lessons. Designed as an intrinsic case study, this research examines interactions within a shared online space, as facilitated by the mobile app called PracticeCactus. During their piano practice, a group of young, committed students, aged 10 to 15, used the app for 20 weeks, prompting an investigation of the effects of facilitating social interactions in the context of independent piano practice.