For a one-paragraph historical narrative of the dominant ninth chord in European and European-influenced music, see this post: link.
I have published an updated index to this blog and essays about scale degree ^6 and the dominant ninth chord on the Texas ScholarWorks platform. Here is the link. The date for this was November 5, 2024. I have made six posts since then, as part of a series on the dominant ninth in textbooks.
For a list of all the essays I've posted to Texas ScholarWorks, go to the front page of the UT Faculty/Researcher Works section: link. If you click on Filters/Author, my name will come up as one of the most frequent contributors. ---- Since then, on 18 December 2024, I have published the fourth and last part in my most recent series: Dominant Ninth Harmonies in Music from 1900 to 1925, Part 4. Here is the link.
