[Avodah] Changing Nusach heTefilah

[Micha Berger via Avodah]

On Wed, Nov 11, 2015 at 05:42:55AM +0200, Ben Waxman via Avodah wrote:
: 1) Is there any chiyuv to pray in a beit knesset that uses your own
: particular nusach?

Going off in a different direction, which is why I changed the subject
line. There are assumptions here about the import of preserving nusach
altogether before this question even gets off the ground.

There is some kind of minhag issue in changing nusachos, where RMF talks
about the permissability of a chassid switching from "Sfard" to Ashkenaz,
since any Ashkenazi davening "Sfard" has an ancestor who was davening
Ashkenaz and switched. ROY allows Israeli Ashk to switch to the SA's
nusach, since he feels that all Israelis should hold like Maran Bet
Yosef on everything. (Although note that both of these examples are of
a noted poseiq championing the superiority of his own nusach.)

But what about the person who switches to "Yisgadeil veYisqadeish", or
"haShemini, Atzeres hachag", or adds "umorid hatal", because they aid his
kavanah -- they say what he prefers to say. The AhS prefers the Sfrard
Mussaf leShabbos, because "az misinai nitztavu tzivui pa'aleha karu'i"
continues the reverse alef-beis with words whose initials are menatzpa"kh
(the sofios). Despite the weight he gives accepted pesaq. In Aleinu,
"vekhisei kevodo" instead of "umoshav yeqro", etc...

Is there a difference between a few retail changes like those above,
and a wholesale change in nusach -- like the mass change to Sfard or Ari?

FWIW, R David bar Hayim gae this shiur <https://youtu.be/Wbg2ZnSbEic>
but his ideas of the role of accepted pesaq -- both in practice lemaaseh
and precedent as pasqened by earlier baalei mesorah -- is so far from
the norm, I don't think it has much value to the way most of us observe.

And if "but this says what I want to express" were sufficient motive to
change nusach, then why not wanting to hear birkhas kohanim? And that's
changing one's own nusach, and one wouldn't be asking about attending
a minyan where /their/ nusach differs.

Tir'u baTov!
-Micha

-- 
Micha Berger             It is our choices...that show what we truly are,
micha at aishdas.org        far more than our abilities.
http://www.aishdas.org                           - J. K. Rowling
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