No without the root E.ronjazz wrote: ↑Fri Jun 21, 2019 12:40 pmIt's an E7b9 that LOOKS like a diminished, it's function is to go to the Am, and there is no expressive need to pause because of a modulation, especially since the melody is in the bass. If anything, the slight pause should be on the A following the E7b9, since that's where the melody "settles".Tonit wrote: ↑Fri Jun 14, 2019 11:09 pmIt's G sharp diminised and not E7b9/G# that I note for the sake of confusion among the visitors.
It makes sense to rit (or pause if you like) here as it is the transitional point to Am key for a while. Like we tend to (but not always) ritardando on JSB's transposition points.
Also, the root of root-position F major seven chord (as in pop chord symbol) is the lowest note before it gets to E pedal. So that it also makes sense here to pause/ritardando to mark the point when the bass has started moving from the pedal and finally arriving at the lowest note.
This is what comes to my head as I see the performance.
It is not any issue analyzing a baroque piece with jazz harmonies, but only when it is properly done.
The jazz answer is, you can only "substitute" the ascending dim7 chords with V7 of the target, or further extend it to iim7(b5)/V7 or otherwise which in turn can be subed by the original dim7 with any of the dim7 constituent note in its bass.
Besides, you can ask about your "V7(b9) of Vm7" chord in the context of BWV999 Prelude composed in the Baroque era among classically trained musicians. It should be analyzed as:
" i (new key): vii o7"
and so in this case
" a: vii o7"
Furthermore, it is widely believed that, JSB was not aware of any "cadence" principle that was established by J.P. Rameu.
If you see what it means, JSB was not aware of any dominant-tonic motion ie V-I when composing, even though the analysis results suggest JSB musics mostly follow the principle.
And IMPO, this aspect (composing freely without cadence awareness) has been contributing to the long lasting charm of JSB compositions unlike those overly abundant cadence-based ones.
Having said all that, it goes without saying that, your own interpretation and musicality behind it should be championed (i.e. should allow nobody to prevent those from being exactly expressed by yourself).