> On Saturday, January 5, 2013 3:12:41 PM UTC-5, Mental Handle wrote:
>> On Fri, 4 Jan 2013 09:09:35 -0800 (PST),
hallj...@gmail.com wrote:
>>
>>> Speaking of Bach, I just posted an analysis of the Prelude from Prelude,
>>> Fugue and Allegro BWV 998 if anyone would like to take a look at it. PDF at end:
>>>
http://www.johnhallguitar.com/blog/prelude_analysis_bwv_998_by_js_bach/
>>
>> Just taking a look... In bar 12, why isn't the 2nd chord just a F#(6-5)
>> going to G to Minor Dominant Bm to bar 13 C#m - i just don't hear a Daug.
>> What do you think?
>> Rgds
>
> Interesting you mentioned that. In measure 12 the A# is really just a chromatic
> passing tone between an "implied" A (as Stanley mentions) in the D major triad
> and the B in the following G major triad.
Do you really hear this as a "passing note"? Then how are things in the
2nd half of measure 13 where you declare the same A# as 3rd of a F#7 chord?
> I almost didn't even bother to label it as a new harmony but decided the
> augmented triad labeling worked best since the augmented triad usually
> has a dominant function as this does in resolving to G major.
Same kind of usual is the progression I - I+ - vi.
> I think you certainly could hear this as an F#6-5 with a deceptive resolution
I hear the F#6-5 as prominent as this is so typical for J.S.Bach while I
do not hear much of a a deceptive resolution of a cadence, which is because
this move does not always need to be a resolution at all but just another
progression. Take for instance the cadence I ii V I where, e.g. in the C
key, the beginning Cmajor - Dminor step is not heard much of a resolution
but rather than some natural progression.
> as you said, but in this context I believe that over complicates things.
There is no complication at all since Bach used the 5+ rarely and in
prominent places (which means immediately in the theme).
> Also notice how the bass line is just arpeggiating root to third through
> this passage.
What do you mean? Do you mean the progression d f# g b?
> That would be another reason for keeping the harmonic rhythm
> consistent (changing every two beats).
This is Bach counterpoint - not a melody above some 'changes' and one
can analyze this counterpoint also much deeper (pinning every single note).
Anyway in the 2nd half of measure 13 you write the same A# as 3rd of a F#7
chord and this seems natural as it is the V of Bm which is the parallel of
the D tonic. The progression F#-G, 5-6 is a very, very common one in minor.
Rgds
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http://www.youtube.com/user/TheMentalHandle