[Smt-talk] Abbreviated Labels of Seventh Chords
Donna Doyle
donnadoyle at att.net
Wed Feb 8 20:51:10 PST 2012
Dear Dimitar,
Perhaps the 4-2 tradition is based on comfort rather than logic, i.
e., we like to say/see two figured bass numbers for each 7th chord
inversion; or, since a 4th with the bass is usually dissonant, we like
to be reminded that in this case it's a chord member.
The 4's presence also enables us (and might remind students) to show
voice leading into the next chord: 4 - 6 ,
rather than bare-bones verticalities (V 2 - I
6
). 2
- 3
Best,
Donna Doyle
Queens College CUNY
____________________
On Feb 8, 2012, at 10:50 PM, Ninov, Dimitar N wrote:
> Dear Colleagues,
>
> My students were asking me why I wrote V2 instead of V4/2. I guess I
> had to ask them why they wrote V4/2 instead of V2. This is not a big
> deal, of course, but I wanted to bring to your attention the fact
> that number 4 is irrelevant to the logic of derivation of the
> abbreviated labels of seventh chords.
>
> The abbreviated labels are derived by two intervals: 1) the interval
> between the bass and the root on the one hand, and 2) the interval
> between the bass and the seventh on the other. Thus in root position
> the only number is 7, because the interval between the bass and the
> root is unison; in first inversion we have 6-5; in second inversion
> 4-3, and in third inversion the only number is 2, because the
> interval between the bass and the seventh is unison.
>
> Why 4? It shows the interval between the bass and the third of the
> seventh chord, which does not have to be shown unless we work in
> minor and use only figured bass with no Roman numerals.
>
> When I flip through the pages of some European and older American
> books of harmony (as well as some relatively new) the above
> explanation is provided. Author such as Piston, Tischler,
> Schoenberg, Horvitt, Cook, and all Russian theorists use 2 instead
> of 4/2, but the massive tendency in the US is to write 4-2. Is this
> tradition based on ignoring the logic of derivation, or is there
> something special that stands behind this label?
>
> I would appreciate any ideas in this regard.
>
> Best wishes,
>
> Dimitar
>
> Dr. Dimitar Ninov, Lecturer
> School of Music
> Texas State University
> 601 University Drive
> San Marcos, Texas 78666
> _______________________________________________
> Smt-talk mailing list
> Smt-talk at lists.societymusictheory.org
> http://lists.societymusictheory.org/listinfo.cgi/smt-talk-societymusictheory.org
More information about the Smt-talk
mailing list