It is my contention that the worlds of instrumental and electroacoustic music are essentially grounded in one basic reality – the physical properties of sound. If there is a divide, then it is based on compositional models and conventions. This is not to diminish the stylistic or technical differences between the two but rather to make the case for a focus on the core aspects of sound, in order to discover different ways of exploring various possible relationships between music for instrumental performer(s) and digital (electroacoustic) means. My thesis stems from the argument that every sound has its own spectromorphology– its own inner life governed by envelope, spectral content, energy and internal pulsation. This leads architecturally to considering the relationship of micro- to macro- phenomena and provides the essential foundations for all the compositions in this portfolio. Taking Pierre Schaeffer’s concept of the “sound object” as its starting point, my portfolio explores various forms of interaction between instrumental and electroacoustic techniques, methodologies and aesthetics, via a range of outcomes for fixed media, acoustic instruments, and combination of instruments with electroacoustic media.