An investigation of the impact of ensemble interrelationship on performances of improvised music through practice research

In this thesis I present my investigation into the ways in which the creative and social relationships I have developed with long-term collaborators alter or affect the musical decisions I make in my performances of Improvised Music. The aim of the investigation has been to deepen the understanding of my musical and relational processes as a trombonist through the examination of my artistic practice, which is formed by experiences in range of genres such as Jazz and contemporary music, with a current specialty in Improvised Music performance. By creating an interpretative framework from the theoretical and analytical processes used in
music therapy practice, I have introduced a tangible set of concepts that can interpret my Improvised Music performance processes and establish objective perspectives of subjective musical experiences.

Chapter one is concerned with recent debates in Improvised Music and music therapy. Particular reference is made to literature that considers interplay between performers. Chapter two focuses on my individual artistic practice and examines the influence of five trombone players from Jazz and Improvised Music performance on my praxis. A recording of one of my
solo trombone performances accompanies this section. It concludes with a discussion on my process of making tacit knowledge of Improvised Music performance tangible and explicit and the abstruse nature of subjective feeling states when performing improvisation. This concludes part one of the thesis.

The second part of the thesis is concerned with the development and application of concepts and their outcomes. In chapter three, I present frameworks drawn from concepts in music therapy practice. Musical material from my work with long standing collaborators Steve Beresford, John Edwards and Mark Sanders form the basis of three case studies presented in chapter four. Recordings of trio and quartet pieces accompany case study one and two. A recording of a duo with myself and Mark Sanders accompanies case three. In the conclusion,
I provide a summary of the research processes, frameworks for analysis and their outcomes.

My quartet record All Will Be Said, All To Do Again, which was recorded in the period of this research, forms part three of the study and is the basis for two of three pieces in the aforementioned case studies in chapter four. Part three also includes a live performance of the quartet featuring myself and the musicians featured in thesis which has been documented and included. I further considered how to share my analytical framework in the form of a software
programme, a prototype of which can be found in the appendix.