This thesis includes a portfolio of electroacoustic and live electronic compositions consisting of multichannel fixed media works and pieces that include instruments, real time computer processing and electronic interfaces. It also details research into stochastic synthesis and its application in music composition. Work carried out in real-time processing of multichannel signals including convolution, spatialisation, as well as decorrelation from one to many channels, sample accurate looping and various sample accurate control systems, is also included in this thesis. Pieces: In a Cage Spinning Plates Poly |Kroðn| BlckWnd River Fields Immortal Lithium.