Paul Erlich

Paul Erlich (born 1972) is a guitarist and music theorist living near Boston, Massachusetts. He is known for his seminal role in developing the theory of regular temperaments, including being the first to define pajara temperament[1][2] and its decatonic scales in 22-ET.[3] He holds a Bachelor of Science degree in physics from Yale University.

For other people with similar names, see Paul Ehrlich (disambiguation).
Harmonic entropy for triads with lower interval and upper interval each ranging from 200 to 500 cents. Compare 4:5:6 , 6:7:9 , and 10:12:15 . See full resolution for locations of the triads on the plot

His definition of harmonic entropy influenced by Ernst Terhardt[4] has received attention from music theorists such as William Sethares. It is intended to model one of the components of dissonance as a measure of the uncertainty of the virtual pitch ("missing fundamental") evoked by a set of two or more pitches.

References
  1. "Pajara", on Xenharmonic Wiki. Accessed 2013-10-29.
  2. ""Alternate Tunings Mailing List", Yahoo! Groups". Archived from the original on 5 November 2013. Retrieved 3 May 2019.CS1 maint: BOT: original-url status unknown (link).
  3. Erlich, Paul (1998). "Tuning, Tonality, and Twenty-Two-Tone Temperament" (PDF). Xenharmonikôn. 17.
  4. Sethares, William A. (2004). Tuning, Timbre, Spectrum, Scale (PDF). pp. 355–357.
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