An exploration into the uses of extended techniques in works for the saxophone, and how their application may be informed by a contextual understanding of the works themselves

This thesis investigates how the specific manipulation of a range of extended techniques for the saxophone can help the performer to highlight key aspects of the music. These techniques can be performed with varying levels of nuance through which the implicit thematic relationships within a composition can be emphasised. The performer's interpretation is therefore aided by the controlled manipulation of extended techniques, with the intention of using these techniques to serve the overall analysis of the composition.

A brief summary of the acoustical phenomena which produces the saxophone's range of extended techniques is included, leading to discussion of the necessary physical manipulations of the oral cavity, alterations of fingerings systems, and other such physiological issues.

The differences from performer to performer of the resulting sounds of the saxophone's extended techniques are considered through reference to recorded material. A discussion is presented regarding individual performers' attitudes to these techniques including the preparation of extended techniques, the importance of equipment, and the performer's opinion of the composer's utilisation of extended techniques within a composition.

The final section outlines the preparation of seven compositions which use extended techniques: four of which are taken from the saxophone's standard repertoire and three of which were written in collaboration with the author. It is not the author's intention to present a global methodology by which extended techniques can be sounded in performance; rather it is the author's intention to highlight how the manipulation of these techniques, through an understanding of the acoustical and physiological nature of their production, can be performed with a nuanced production technique that can enhance the interpretation of the work as a whole.