Re: Re[2]: Levine and dominant resolutions
reed ( (no email) )
Tue, 15 Jul 1997 10:25:39 -0700
At 08:10 AM 7/15/97 -0500, you wrote:
>>I've heard that the dominants subbing for each other is sometimes based
>>on the related diminished chords. In C we have G7 resolving to C, which
>>is related to Bdim7 resolving to C (Bdim7 is G7b9 without the root.)
>>Bdim7 has the same notes as Ddim7, Fdim7, and Abdim7. The dominant chords
>>related to these are Bb7, Db7, and E7. Bb7 is, of course, the "backdoor
>>dominant," and Db7 is the tritone sub of G7. The E7 is for some reason
>>a little more exotic than the other three, as it wasn't used all that
>>much before the sixties but it is there and it works if your ears can
>>dig it.
>
>Of course E7 is the dominant of C's relative minor, as well as being the
>tritone substitution of the backdoor dominant.
>
>--Dick Bay * DBay@aici.com
>
>
The thing to realize about related diminished chords is that they
have a b9, which is something that a backdoor dominant never has.
Backdoor dominants are always 9,#11 and 13 due to the fact that they
are really based on the jazz minor scale from a perfect fourth below.
reed
reed
>
Reed Kotler
reed@justjazz.com
http://www.justjazz.com