In this paper, the authors note that whilst new forms of group communication such as text messaging on mobile phones is being embraced, informal group music making has lost its place as an everyday form of social interaction. In addressing this issue the authors present the findings of a study that was focused on understanding what encourages and supports mutual engagement between people as they interact with each other. Their research was based around the Daisyphone interface, part of a design project whose aim is to support remote group music making.