Eivind Groven (October 8, 1901–February 8, 1977) was a Norwegianmicrotonalcomposer and music-theorist. October 8 is the 281st day of the year (282nd in leap years). ... 1901 was a common year starting on Tuesday (see link for calendar). ... February 8 is the 39th day of the year in the Gregorian Calendar. ... 1977 was a common year starting on Saturday (the link is to a full 1977 calendar). ... Microtonal music is music using microtones -- intervals of less than a semitone, or as Charles Ives put it, the notes between the cracks of the piano. ... A composer is a person who writes music. ... Wikibooks Wikiversity has more about this subject: School of Music Look up Music on Wiktionary, the free dictionary Wikisource, as part of the 1911 Encyclopedia Wikiproject, has original text related to this article: Music Wikicities has a wiki about Music: Music MusicNovatory: the science of music encyclopedia Science of Music...
EivindGroven (1901-1977) was born in Lårdal in western Telemark, a part of Norway rich in folk-music traditions.
Groven devoted a great deal of effort to disseminating information on genuine folk music which had neither been transcribed nor made the subject of scientific study.
As early as 1927, Groven published his thesis The Natural Scale, a pioneer work in which he examined the use of formulas in vocal and instrumental folk music that might have been derived from the scales and playing technique used on the willow flute.
Groven's 1/8-skhisma-narrow "5th" may thus be notated as a prime-factor vector as follows:
However, the 1/8-skhisma tempering of Groven's "5th" is only ~1/4-cent to begin with, and the error of 53edo from his "5th" is ~1/6-cent too large, whereas the 53edo "5th" is only ~1/12-cent narrower than the "pure" Pythagorean 3:2 "5th".
If Groven was interested primarily in a method of notation for flexible-pitch instruments, such as voices or unfretted strings, he could in theory have extended the schismic chain indefinitely.
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