This chapter engages with the question of whether musical absorption is not some kind of "flow" experience. I analyze Csikszentmihalyi's theory of flow to draw a twofold negative conclusion to the question. Firstly, the theory is so general and conceptually underspecifying, especially with regard to the nature of self-awareness, that more or less any pleasant experience might instantiate flow: as such it is not falsifiable. Secondly, in spite of its generality, a number of DSQ experiences are incompatible with the theory as its predictions on the relation between challenge and skill do not hold.