A PORTFOLIO OF COMPOSITIONS SUMMARY OF SUBMISSION This Portfolio of Compositions contains four large-scale instrumental works for a variety of ensembles and one studio work created using ambient field recordings. Each works attempts a re-evaluation of conventional performance protocols through the spatial realization of compositional elements. Notated scores and recordings are accompanied by analysis and commentary, which explores aspects of their design with specific regard to musical style, formal organization and compositionallanguage. The five pieces included in the portfolio are: 1. Spheros (Sphere) Music for Spatialised Choir and Soundtrack Duration: 10 minutes 3. Authorization Codes Music for Orchestra Duration: 12 minutes 4. Sinsear...