How to approprietly define a musical score? : an outline of the actual taxonomy of musical scores with regard to the development of unconventional notation

Graphic scores abandon traditional musical notation for visual symbols, inviting open-ended interpretation and improvisation. This article explores the limitations of existing taxonomies of graphic scores, which often neglect the interpretative process and the roles of the composer, performer, and audience. It proposes a different taxonomy considering the score's function, authorial intent, and the type of symbols used, offering a more holistic approach. Through case studies of performances, the article highlights how graphic scores bridge music and visual art, fostering creativity and collaboration between composers, interpreters, and audiences in some cases, with an emphasis on the role of free improvisation as a crucial element in interpreting these open works. Free improvisation allows performers to fully engage with the graphic score, transforming interpretation into a collaborative and spontaneous act of creation.