Muhal Richard Abrams's ground-breaking work as a composer, improviser, and cofounder of the Association for the Advancement of Creative Musicians (AACM) is far reaching and multifaceted. Russian composer, theorist, and polymath Joseph Schillinger appears repeatedly in discussions of Abrams and the AACM, suggesting that music theory played a generative role in Abrams's creative practice and pedagogy. This article focuses on Abrams's engagement with The Schillinger System of Musical Composition. It theorizes Abrams's incorporation of Schillinger's work into his broader creative pallette, analyzes Abrams's compositional application of Schillinger's theory, and suggests conceptual resonances between Abrams's creative practice and the text. Ultimately, this article suggests a larger network of African American theorists, which I conceptualize as “fugitive music theory.”