ABSTRACT
Heterogeneity in music has many aspects. This chapter focuses on ways in which stylistically diverse materials are incorporated in a range of different types of music. The span of composers and genres discussed here is wide, and includes The Beatles, John Cage, Pierre Henry, Henri Pousseur, Pierre Schaeffer, Karlheinz Stockhausen, Bernd Alois Zimmerman, progressive rock and 'world music'. Thus it is possible to understand the concept in such a broad way that all significant differences between materials can lead to an analysis of their heterogeneity. The chapter distinguishes between two levels of heterogeneity: on the one hand, there are the means of integrating materials of diverse origins; on the other hand, there is the nature of the elements being integrated. The chapter ends with a consideration of the concept of sampling by comparing schaeffer's approach to more recent developments.
