3969/3968: Difference between revisions
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The [[superparticular interval]] '''3969/3968''', the '''yunzee comma''', is an [[unnoticeable comma]] in the 2.3.7.31 subgroup, of about 0.43624 cents. | The [[superparticular interval]] '''3969/3968''', the '''yunzee comma''', is an [[unnoticeable comma]] in the 2.3.7.31 subgroup, of about 0.43624 cents. It is also a metasuperparticular, being the difference between between [[63/62]] and [[64/63]]. | ||
The 2.3.7.31 subgroup is notable for being the basis of the [[Young-lm piano-1964|first]] [[Young-lm piano-1973|tunings]] used in [[La Monte Young|La Monte Young's]] ''The Well-Tuned Piano'', before it was changed to eliminate 31-based intervals. | The 2.3.7.31 subgroup is notable for being the basis of the [[Young-lm piano-1964|first]] [[Young-lm piano-1973|tunings]] used in [[La Monte Young|La Monte Young's]] ''The Well-Tuned Piano'', before it was changed to eliminate 31-based intervals. Curiously, 3969/3968 turns out to be the difference between several complex intervals in the later tuning and simpler 31-based intervals, such as 189/128 and [[31/21]], 567/512 and [[31/28]], 1323/1024 and [[31/24]], etc. Thus it is named for the stressed syllables in both Young's surname and that of his wife, Marian Zazeela (who provided the light art for WTP performances). | ||
Tempering it out within its subgroup leads to the very accurate (but still possibly sacrilegious) rank-3 [http://x31eq.com/cgi-bin/rt.cgi?limit=2_3_7_31&ets=130_306_171 yunzee temperament.] | Tempering it out within its subgroup leads to the very accurate (but still possibly sacrilegious) rank-3 [http://x31eq.com/cgi-bin/rt.cgi?limit=2_3_7_31&ets=130_306_171 yunzee temperament.] |