Perceptual Memories, Physicality and Collaboration As Sources of Musical Material in My Pieces Situación #3, Situación #2, and Between Transparency and the Invisible

This dissertation is an account of the strategies that I employed in the compositionof three of my recent pieces: Situación #3, for flute (bass flute), clarinet (bass clarinet), piano, percussion, violin, cello, and electronics; Situación #2, for amplified acoustic guitar and two performers; and Between transparency and the invisible, for orchestra and electronics. The first chapter, devoted to Situación #3 discusses the re-interpretation of memories and visual records with musical means. The second chapter focuses on Situación #2 and the issues of physicality and collaboration that originated the piece. The third chapter addresses Between transparency and the invisible and how it was informed by my experience contemplating visual art.