This dissertation comprises a collection of works that address aspects of sound
occupying space. Those aspects refer to inner components of timbre and rhythm and
how these may influence the perception and projection of sound. These works also
address the interaction of physical or virtual spaces and spatial attributes of sound in
regard to rhythm and timbre. The composition of timbres serves as fundamental base
for the musical material contained in the works, using sound synthesis and extended
techniques as a paradigm for articulation and instrumentation of sound in vertical and
horizontal layers. Rhythm is not only a parameter that articulates time; it may also be
the parameter that articulates musical material. The relationships of timbre and rhythm
serve as expressive substance for the elaboration of immersive soundscapes that are
molded by time and memory.