Quote:
Noel, there seems to be conflicting notations, I notice you don't make use of lower case. Wiki does it seems.


Try this site ...

http://www2.siba.fi/muste1/index.php?id=87&la=en

Also, if you want a good book to read on the principles of harmony, I suggest the original Walter Piston book called "Harmony".

http://en.wikipedia.org/wiki/Walter_Piston

His book was published in the mid-20th century. Professor Piston is one of America's great theorists. He only ever used uppercase Roman numerals. I don't know whether his revised edition (edited and added to by another music academic, Mark DeVoto) uses uppercase or a mixture of upper- and lowercase.

Regards,
Noel

P.S. At the end of the day, the best approach is to do what works best for you. I prefer all uppercase Roman numerals because the major/minor 3rd is accommodated by the key signature in diatonic harmony. I also prefer using the system that incorporates aspects of figured bass with the Roman numerals (as mentioned in the page you posted the link to).

For example ...



In the key of G major, the above chords would be Bm, Am (first inversion), G (second inversion).

In the key of Am, the same notation would refer to Caug (if one uses the harmonic minor scale), Bmb5 (first inversion), Am (second inversion).

By the way, that's a very understandable notation that you've put together for "Over The Rainbow". It does the job well. That's all that matters.

MY SONGS...
Audiophile BIAB 2024