Implementation of a semi-open compositional system based on the similarity between pitch-class sets

• Main Authors: Vinicius Braga, João Penchel, Igor Chagas, Rodrigo Furman, Pedro Proença, Liduino Pitombeira
• Format: Article
• Language: Portuguese
• Published: Associação Nacional de Pesquisa e Pós-Graduação em Música 2020-10-01
• Series: Opus
• Subjects: sistemas composicionais. planejamento composicional. similaridade entre conjuntos de classes de notas.
• Online Access: https://www.anppom.com.br/revista/index.php/opus/article/view/842
• ISSN: 0103-7412; 1517-7017

This paper describes the formalization and application of a compositional system, called SIMILARE, which articulates microstructure and macrostructure based on similarity relations among pitch-class sets. After a detailed examination of the two references that give theoretical support to the work (compositional systems and similarity), the system was defined and, from it, two works were planned: one for string quartet and other for solo piano. During the research process, Python applications were designed to assist composers in manipulating sets.