The Comprovisador’s Real-Time Notation Interface (Extended Version)

Abstract

Comprovisador is a system designed to enable real-time mediated soloist-ensemble interaction, through machine listening, algorithmic procedures and dynamic staff-based notation. It uses multiple networked computers – one host and several clients – to perform algorithmic compositional procedures with the music material improvised by a soloist and to coordinate the musical response of an ensemble. Algorithmic parameters are manipulated by a conductor/composer who mediates the interaction between soloist and ensemble, making compositional decisions in real-time. The present text, an extended version of a paper presented at CMMR 2018, in Matosinhos, focuses on the notation interface of this system, after overviewing its concept and structure. A discussion is made on how rehearsals and live performances impacted the development of the interface.