I regularly see the 5th of the chord being omitted/replaced in extended chords. Is this common practice? Examples below (there are others I've seen but I cannot recall them):
- Video by Adam Neely on the 6/9 chord
- Scales book which contains cadences. The 5th is AWAYS removed on the V7 to the I
- Video on the 7/6 chord which again removes the 5th.
However, in the video referenced above by Adam Neely, the C6 chord DOES have the 5th and the 6th (timestamp), and when he introduces the 6/9 chord it also contains the 5th (timestamp). It is later removed when he voices it.
Further, this book on jazz voicings always includes the 5th in all four hand positions for voicing chords, with the exception of the 13 where the 13th replaces the 5th.
When I was originally trying to voice, say for example a 9 chord, I would make sure that all intervals in the chord appeared in the voicing somewhere. This could result in muddy chords.
Is removing the 5th the initial step to 'thinning out' a muddy chord?
I'm confused about what can and cannot be omitted in a chord. Is there are hierarchy of intervals that can be omitted, with say the root last?