St Aldates is a large Charismatic Anglican church in the centre of Oxford. The music of the regular Sunday services stands within the tradition of Contemporary Worship Music and the musical leaders cultivate an intentional sense of consistency. Within this environment, individuals are often expected to set aside existing musical tastes and attachments, adopting an attitude of worship regardless of their relationship to the musical environment. Away from the Sunday services there are a number of more marginal musical spaces in which a wider range of musical forms find expression. In this article I draw on third-space theory and my own ethnographic fieldwork to explore the alternative musical dynamics which two such spaces open up and the different relationships which they enable between individuals’ diverse musical attachments and the musical life of the church. In line with divergent streams in the literature, I suggest that these spaces carry both productive and disruptive potential, both challenging and supporting prevailing musical norms.