Yale University Department of Music Harmonic Vocabulary in the Music of John Adams: A Hierarchical Approach Author(s): Timothy A. Johnson Source: Journal of Music Theory, Vol. 37, No. 1 (Spring, 1993), pp. 117-156 Published by: Duke University Press on behalf of the Yale University Department of Music Stable URL: http://www.jstor.org/stable/843946 Accessed: 06-07-2017 19:50 UTC JSTOR is a not-for-profit service that helps scholars, researchers, and students discover, use, and build upon a wide range of content in a trusted digital archive. We use information technology and tools to increase productivity and facilitate new forms of scholarship. For more information about JSTOR, please contact
[email protected]. Your use of the JSTOR archive indicates your acceptance of the Terms & Conditions of Use, available at http://about.jstor.org/terms Yale University Department of Music, Duke University Press are collaborating with JSTOR to digitize, preserve and extend access to Journal of Music Theory This content downloaded from 198.199.32.254 on Thu, 06 Jul 2017 19:50:30 UTC All use subject to http://about.jstor.org/terms HARMONIC VOCABULARY IN THE MUSIC OF JOHN ADAMS: A HIERARCHICAL APPROACH Timothy A. Johnson Overview Following the minimalist tradition, much of John Adams's' music consists of long passages employing a single set of pitch classes (pcs) usually encompassed by one diatonic set.2 In many of these passages the pcs form a single diatonic triad or seventh chord with no additional pcs. In other passages textural and registral formations imply a single triad or seventh chord, but additional pcs obscure this chord to some degree.