Music theory--roman numeral harmonic analysis?!
Question: So, what is I, I 6, I 6/4, ii, ii 6, ii6/4, etc...? (the numbers should be subscripted). And what exactly is the V7 chord?
Answers: So, what is I, I 6, I 6/4, ii, ii 6, ii6/4, etc...? (the numbers should be subscripted). And what exactly is the V7 chord?
The I ("one chord") is a triad that has the first scale degree as its root. The uppercase indicates that it is a major chord.
The ii ("two chord") is a triad that has the second scale degree as its root. The lowercase indicates that it is a minor chord.
The subscripted numbers (6, 6/4) refer to the inversion of the chord (1st inversion, 2nd inversion respectively). Triads only have those two inversions.
Four-note chords however have three inversions (6/5, 4/3, and 4/2 for the 1st, 2nd, and 3rd inversions respectively.)
(Note: The subscripted numbers themselves are based on an old short-hand notation system called figured bass. You just need to know which number(s) refer to which inversions)
The V7 ("five seven" or "dominant seven," the seven is NOT subscripted) is a four-note chord with the fifth scale degree as its root and has an added 7th in addition to the root, 3rd, and 5th. In the key of C major this would be a G7 chord or the notes G,B,D and F.
(Note: The V7 could technically be called a "major-minor seventh" because it is a major triad with a minor seventh interval above the root, but major-minor sevenths are so common that they are almost always simply abbreviated to "seven.")
More info:
http://en.wikipedia.org/wiki/Inversion_%...
http://en.wikipedia.org/wiki/Figured_bas...
It's called "Nashville notation". We used this in the studios all the time. http://www.cyberfret.com/q-and-a/24/inde...