But couldn't chords greater than n13 be called poly chords? Like CMaj7:DMaj7b9, i.e. C-E-G-B-D-A-C#-Eb. This would make a good cluster chord.
Oh, man, this is so interesting, it raises deep philosophical issues about the nature of musical reality (and I am
not being facetious.)
My chord pictured above can be
regarded as a C Major with a Bb Major sitting on top of it.
Does that mean that's what it
is, really?