Analyzing String Instrument Preparation Techniques in Context: Timbral Space, Syntax and Form

Drawing on Tristan Murail’s reflections on the integration of complex sounds into contemporary composition, the research examines the relationships between spectromorphological features, timbral syntax, and formal function of complex sounds produced through prepared string instruments. The study proposes an analytical methodology combining the classification of preparation techniques, the analysis of recorded sounds and their spectromorphological properties, and the study of scores and performance documentation. The corpus includes works by contemporary composers such as Mauro Lanza, Maurizio Azzan, Clara Iannotta, and Giovanni Verrando. The analysis shows that prepared string sounds can assume different compositional functions depending on their context. In solo and chamber works, their perceptual features may contribute to contrastive and syntactic processes; in larger ensemble contexts, they may operate as timbral models generating processes of expansion, integration, and orchestration. The study proposes a perspective in which prepared sounds are not considered merely as timbral effects, but as potential structural elements of contemporary composition.