And I would much appreciate it if, even if certain other themes appear to be of burning concern to some members, we were to make an effort to confine future discussion on this thread to its purported and erstwhile topic.
OK - let's try something more positive!
A CASE STUDY -
MagnificatScored for the following voices:
Sop. 1, Sop. 2, Alto, Tenore and
Basso, how many singers should there be per part?
Et exultavit (movt 2) uses a single vocal line called "Soprano II" (i.e. identical with the chorus specification at the beginning), while
Quia respexit (movt 3) employs another single soprano line, this time called "Soprano I" (also identical with that specified at the beginning of the work).
Moreover,
Quia respexit flows straight into the following "chorus" (
Omnes generationes - Movt 4) without a break, and it is clear that whatever has been singing the former must be identical with what now sings the latter - as shown here:
But how many singers?! The natural assumption would be that
Quia respexit - being an
Aria with obbliggato - uses a solo voice. The presumption would perhaps be, therefore, that so does
Omnes generationes (and consequently, therefore, all the remaining "chorus" movements).
BUT.........!
...Movt 5 (
Quia fecit mihi magna) actually specifies the voice as being "
Basso solo", as can be seen in Bach's own hand!.......
Now if there is, from the beginning, only one person singing the Basso part, WHY does Bach need to specify "Basso solo" for this movement?
Furthermore, Movt 8 (
Deposuit potentes) specifies in the score a
Solo Tenore. Why would Bach have done this if there had only ever been a single person singing the tenor part?
The remaining "aria" movements do NOT specify the use of soloists however. And - by a curious twist or change of the goalposts (!) - I now find myself, through sheer logic, questioning the assumption that the "aria" movements here should be at all sung
WITH only ONE voice per part - unless specifically asked to do so.
This may (although I don't know) say something positive about the soloistic qualities of the Tenors and Basses at Bach's disposal, as opposed to the Altos and Sopranos. Bach was, above all, an extraordinarily intelligent and
practical composer.
But I am - on the whole - sceptical about the proposition (here) that a quintet of solo voices (including children - however well-trained) would have been intended by Bach to balance with an array of instruments including 3 trumpets, timps, strings and a continuo specifically including organ, bassoon(s) and bass strings. And I say this in full awareness of the fact that Baroque instruments were less weighty than later ones.
Baz