Iannis Xenakis' Gmeeorh for organ solo: the use of arborescences and performance challenges

The purpose of this thesis is to explore Iannis Xenakis’ work, Gmeeoorh for organ, based on the use of his compositional technique, arborescence, and also to offer new insights into the performance of avant-garde organ music by way of technical solutions to the extreme complexities and difficulties found in Gmeeoorh. It is also intended as a guideline to expand awareness of the organ repertoire of the late twentieth and twenty first centuries.Ope