The concept of `sound' experienced a categorical revaluation in the new discourse of art music. At the same time, semanticity seemed to have become obsolete. But how many semantic traces actually remained in the sound of classical-modern and New Music? Which new kinds of connections to the world of sound can recent conceptual aesthetics produce? And what opens up them up to analytical exposure? This volume approaches these questions from the perspectives of music history, art philosophy, gender theory, and post-colonialism and collects case studies on Schönberg, Koechlin, Schulhoff, Schostakowitsch, Schaeffer, Boulez, and Rihm as well as from conceptual art.