Right, total brain fart on my part! (And I actually had never seen the "G-7" notation)
Still, I think it would be much more useful to consistently have the chord abbreviations in the main table.
Still, I think it would be much more useful to consistently have the chord abbreviations in the main table.
Example from Google image search: https://www.musikalessons.com/blog/wp-content/uploads/2017/0... . At least this one uses maj7 for major 7, rather than M7 or △7 :)