A portfolio of three compositions : improvisation as a structural device

Abstract

As a means of musical elaboration, improvisation takes an important role in different musical genres. From impromptus and rhapsody, to traditional music such as Javanese gamelan and Cantonese opera, improvisation shapes the distinctive features of musical works, and how composition takes on the features of improvisation. Despite the distinctive modes of improvisation in accordance with specific musical conventions, such improvisation share a common ground that it does not arise from nothing but comprises something memorized or given. Improvisation can be regarded as a spontaneous creativity within constraints and convention. Composers, therefore, can explore the performance techniques of different musical instruments and the creative possibilities within certain musical conventions through the use of improvisation from time to time.

In this thesis, I seek to explore how improvisation as being operated within constraints and convention through a portfolio of three compositions. Each composition features one or two particular instruments in the improvisatory passage, i.e., sheng (Opera From a Forgotten Land), piano and flute (Improvisation Study no. 1) and electronic bass guitar (Improvisation Study no. 2). Considering the differences in the adhered musical culture and performance practice of these instruments, I shall explain the rationales behind my composition strategy.