Bach / pure fifths/ Werckmeister III?

JR:
> In an analysis I did of Bach's opening intervals in his famous
works, I found that for all the pure perfect fifths and perfect
fourths available in Werckmeister III tuning, NONE was ever used.

How about -

Violin concert in A minor, opening E-A-E, 3rd movement opening E-A

Brandenburg no.2 opening F-C above bass F, 3rd movement opening with
F-C in trumpet...

Brandenburg no.6, 3rd movement opening F-Bb

Violin / keyboard sonata in F minor, opening C-F

Violin / keyboard sonata in A major, opening A-E

Two-part Inventions in E minor and A minor

English Suite opening E-A-A

B minor mass, 'Laudamus te' with violin part opening E-A

Chorale prelude 'Wachet auf', Bb-Eb

Two chorale preludes 'Aus tiefer Noth', B-E-B and C#-F#-C#

Ditto 'Jesus Christus, unser Heiland', E-B in both

In the WTC I:

C# minor prelude opening with G#-F# above bass C#
F major prelude opening with F-C above bass F
F# major fugue, C#-F#
D# minor fugue, D#-A#
Ab major fugue, Ab-Eb
Bb minor fugue, Bb-F (which is the entire first phrase!)

????

~~~T~~~