Didymic chords: Difference between revisions

Dominant seventh chord: +link to half-diminished seventh chord
Only starling is possible
Line 17: Line 17:
* 1–5/4–3/2–9/5 with steps 5/4, 6/5, 6/5, 9/8.
* 1–5/4–3/2–9/5 with steps 5/4, 6/5, 6/5, 9/8.


Built on G, it is G–B–D–F. Note that septimal meantone is not required to make it a 9-odd-limit concord. Either [[starling]] or [[marvel]] can be used, depending on what interval the top note is interpreted as, though both are required for it to represent 16/9~9/5.  
Built on G, it is G–B–D–F. Note that tempering out the [[126/125|starling comma (126/125)]] alone is enough to make it a 9-odd-limit concord, though septimal meantone is required for the top note to represent 16/9~9/5.  


Its inverse is the [[half-diminished seventh chord]]:  
Its inverse is the [[half-diminished seventh chord]]: