Th is text, fi rst published in Deleuze and Music, edited by Ian Buchanan and Marcel Swiboda (Edinburgh: Edinburgh University Press, 2004), pp. 54–74, Nick Nesbitt compares Th eodor W. Adorno’s negative dialectical approach with Gilles Deleuze’s antidialectical approach to the question of multiplicity and diff erentiation within music. Nesbitt concludes with a consideration of the attempts made to address the problem in the work of important twentieth-century musicians, particularly that of John Coltrane. Th e Czech translation here is by Marta Martinová and Michal Jurza.