This article builds upon existing scholarship concerning the relationship between improvisation and composition. Sections 1 to 3 comprise an exploration into and analysis of both the traditional understanding of improvisation and composition as opposing categories, as well as the more modern, nuanced view of their interpenetrating natures. I conclude that the former view should be replaced by the latter. Sections 4 and 5 present and subsequently negate two potential failings of my argument. First, I confront the problem posed by Goehr’s (...) work-concept, whose essence is opposed to the spirit of improvisation, but argue that recording allows for the solidification of these improvisations into works. Secondly, I undermine the view that composition is creation ex nihilo whilst improvisation is the mere reworking of old material. I uncover the originality of improvisation and formulae of composition to restore their compatibility and reinforce improvisation’s status as a method of broad- and narrow-sense composition. (shrink)