Petrmic chords
IMPORTED REVISION FROM WIKISPACES
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- This revision was by author genewardsmith and made on 2011-07-27 17:08:50 UTC.
- The original revision id was 243131369.
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Original Wikitext content:
The //petrmic triad// is a 13-limit [[Dyadic chord|essentially tempered dyadic chord]] consisting of two 13/10 intervals followed by a 13/11, in other words a 13/10-13/10-13/11 chord, tempered by the petrma, 2200/2197, so that it closes at the octave. Another way to say this is that it is the petrmic tempering of 1-13/10-22/13 or 1-13/11-20/13. Equal temperaments with petrmic triads include 29, 37, 50, 53, 58, 84, 87, 111, 121, 140, 190, 198, 224, 311, 414, 422, and 612. 37, 50 and especially 29 have notably good petrmic triads.
Original HTML content:
<html><head><title>petrmic triad</title></head><body>The <em>petrmic triad</em> is a 13-limit <a class="wiki_link" href="/Dyadic%20chord">essentially tempered dyadic chord</a> consisting of two 13/10 intervals followed by a 13/11, in other words a 13/10-13/10-13/11 chord, tempered by the petrma, 2200/2197, so that it closes at the octave. Another way to say this is that it is the petrmic tempering of 1-13/10-22/13 or 1-13/11-20/13. Equal temperaments with petrmic triads include 29, 37, 50, 53, 58, 84, 87, 111, 121, 140, 190, 198, 224, 311, 414, 422, and 612. 37, 50 and especially 29 have notably good petrmic triads.</body></html>