User:TallKite/Midpoints: Difference between revisions

TallKite (talk | contribs)
m updated EI to EU
TallKite (talk | contribs)
minor cleanup, still rough
 
Line 16: Line 16:


The gamuts are P1, m2-M2, m3-M3, P4-A4, d5-P5, m6-M6, m7-M7, P8. (See Kite's Rationales for gamuts below.) The endpoints of these gamuts define both kinds of mids, which collectively Kite calls midpoints. For example, a mid 2nd is the midpoint of m2 and M2, which is (m2 + M2)/2 = m3/2. And a mid plus 2nd is (M2 + m3)/2 = P4/2.
The gamuts are P1, m2-M2, m3-M3, P4-A4, d5-P5, m6-M6, m7-M7, P8. (See Kite's Rationales for gamuts below.) The endpoints of these gamuts define both kinds of mids, which collectively Kite calls midpoints. For example, a mid 2nd is the midpoint of m2 and M2, which is (m2 + M2)/2 = m3/2. And a mid plus 2nd is (M2 + m3)/2 = P4/2.
Inner mid and outer mid are qualities like perfect, major and minor. Neutral and interordinal are also qualities, although slightly vague ones. Perfect, major and minor are in theory precise qualities but in practice they are slightly vague. e.g. 5/4. They can diverge from their exact size by adding super- and sub- serve to . Likewise supermid, subneutral and superoutside, but subinterordinal is going too far. -ish serves to


One could label various interordinals as perfect, major, minor, etc. But outsiders aren't major or minor, they're just outside. Analogous to how mids are just mid. IOW mid and outside are themselves qualities. Neutral is also a quality, although a vague one, whereas mid is exact. Major, minor, etc. are in theory exact, but in practice vague. If they were in practice exact, we would describe e.g. 5/4 as "majorish".  
One could label various interordinals as perfect, major, minor, etc. But outsiders aren't major or minor, they're just outside. Analogous to how mids are just mid. IOW mid and outside are themselves qualities. Neutral is also a quality, although a vague one, whereas mid is exact. Major, minor, etc. are in theory exact, but in practice vague. If they were in practice exact, we would describe e.g. 5/4 as "majorish".  
Line 147: Line 145:
What about (P8/2, P5)? it has vvd2 and a +4.
What about (P8/2, P5)? it has vvd2 and a +4.


Any other pergens? ask Praveen
(note to self -- Any other pergens?)


But we can still talk about a just mid 3rd. it's half of a just P5. And the just mid +2nd is half a just P4. Thus a just midpoint is simply half a just 3-limit interval, and is really a 3-limit midpoint.
But we can still talk about a just mid 3rd. it's half of a just P5. And the just mid +2nd is half a just P4. Thus a just midpoint is simply half a just 3-limit interval, and is really a 3-limit midpoint.