3ifdo: Difference between revisions
CompactStar (talk | contribs) Created page with "{{Infobox IDO|steps=3}} '''3ido''', if the attempt is made to use it as an actual scale, would divide the octave into three inverse-arithmetically equal parts. The..." |
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{{Infobox | {{Infobox IFDO|steps=3}} | ||
''' | '''3ifdo''' ([[IFDO|inverse-arithmetic frequency division of the octave]]), or '''3udo''' ([[utonal division]] of the octave), if the attempt is made to use it as an actual [[tuning system]], would divide the [[octave]] into three inverse-arithmetically equal parts. It is a superset of 2ifdo (equivalent to [[2afdo]]) and a subset of [[4ifdo]]. It is the first nontrivial ifdo since it is the first ifdo to demonstrate [[chirality]]. Its inverse is [[3afdo]]. As a [[scale]] it may also be known as mode 3 of the subharmonic series or the Under-3 scale. The notes of this IFDO form a [[just minor triad]] in root position. | ||
== Intervals == | == Intervals == | ||
| Line 7: | Line 7: | ||
! Cents | ! Cents | ||
! Ratio | ! Ratio | ||
! Interval name | ! Interval name | ||
! Audio | ! Audio | ||
| Line 14: | Line 13: | ||
| 0.00 | | 0.00 | ||
| [[1/1]] | | [[1/1]] | ||
| perfect unison | | perfect unison | ||
| | | | ||
| Line 30: | Line 28: | ||
| [[File:Jid_3_2_pluck_adu_dr220.mp3]] | | [[File:Jid_3_2_pluck_adu_dr220.mp3]] | ||
|- | |- | ||
| | | 3 | ||
| 1200. | | 1200.00 | ||
| [[2/1]] | | [[2/1]] | ||
| perfect octave | | perfect octave | ||
| [[File:Jid_2_1_pluck_adu_dr220.mp3]] | | [[File:Jid_2_1_pluck_adu_dr220.mp3]] | ||
|} | |} | ||
[[Category: | [[Category:IFDO|#]] | ||