LewisG. E. (1996). Improvised music after 1950: Afrological and Eurological perspectives. Black Music Research Journal, 16(1), 91–122. https://doi.org/10.2307/1519950
PressingJ. (1988). Improvisation: Methods and models. In SlobodaJ. A. (Ed.), Generative processes in music: The psychology of performance, improvisation, and composition (pp. 115–129). Oxford University Press.