4:5:6:7:9: Difference between revisions
Jump to navigation
Jump to search
m {{stub}} |
Expanded description |
||
| Line 1: | Line 1: | ||
{{Infobox Chord|ColorName=yo zo-7 add-9 or y,z7,9, har-9 or h9}} | {{Infobox Chord|ColorName=yo zo-7 add-9 or y,z7,9, har-9 or h9}} | ||
'''4:5:6:7:9''', the ''harmonic ninth chord'', is a [[pentad]] in [[7-limit]] harmony. | '''4:5:6:7:9''', the ''harmonic ninth chord'', is a [[pentad]] in [[7-limit]] harmony. It serves as the fundamental otonal consonance of the 9-odd-limit, with many chords being a subset of it or one of its inversions. Its utonal inverse, [[140:180:210:252:315|1/(4:5:6:7:9)]], can also be seen as a fundamental chord, and subsets can be taken out of it as well. The 4:5:6:7:9 chord can be modified to get its utonal inverse by inflecting both the third and seventh up by [[36/35]], so the third becomes [[9/7]] and the seventh [[9/5]]. | ||
[[Category:Todo:expand]] | |||
Revision as of 17:02, 7 November 2025
| Chord information |
har-9 or h9
4:5:6:7:9, the harmonic ninth chord, is a pentad in 7-limit harmony. It serves as the fundamental otonal consonance of the 9-odd-limit, with many chords being a subset of it or one of its inversions. Its utonal inverse, 1/(4:5:6:7:9), can also be seen as a fundamental chord, and subsets can be taken out of it as well. The 4:5:6:7:9 chord can be modified to get its utonal inverse by inflecting both the third and seventh up by 36/35, so the third becomes 9/7 and the seventh 9/5.