A fuzzy framework to explain musical tuning in practice

  • Authors:
  • Teresa LeóN;Vicente Liern

  • Affiliations:
  • Dept. Estadística e Investigación Operativa, Universitat de València, Spain;Dept. Matemàtiques per a l' Economia i l'Empresa, Universitat de València, Spain

  • Venue:
  • Fuzzy Sets and Systems
  • Year:
  • 2013

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Abstract

A theoretical tuning system is a set of pitches that can be used to play music. It is a fact that the human ear perceives notes with very close frequencies as if they were the same note. Therefore, in our approach a musical note and its pitch sensation are modeled as L-R fuzzy numbers with a modal interval and a bounded support. We pay particular attention to the 12-tone equal temperament (12-TET) for being the most widely used tuning system and we define the fuzzy 12-TET composed of 12 fuzzy notes. A similarity relation between a fuzzy note and a theoretical note can be defined, and subsequently a similarity class associated to each one of the fuzzy notes in the fuzzy 12-TET arises. Finally, we study the similarity between the theoretical notes in a given score and those notes played by a musician making use of an OWA operator. Some numerical examples illustrate our approach.