[Avodah] Shir HaMaalos, Maaseh Elokaynu/Enosh, L'Dovid Mizmor, Tekios B'Emtzo Kaddish

[Moshe Y. Gluck]

R' RallisW:
>Just some issues that have bothered me for the past few Yomim Noroim.
 
>1) Isn't saying Shir HaMaalos MiMamakim a hefsek between Yishtabach and
Borchu?

Minhag Lakewood (or at least BMG) is to say Shir HaMaalos later on.
 
<SNIP>
>4) Isn't blowing Tekios during the Kaddish Sholeim following Musaf RH a
hefsek? Couldn't they be blown afterwards?
 
In general, something that is supposed to be somewhere is not a Hefsek in
that context (for example, Hashem Sefasai Tiftach is not a Hefsek between
Ge'ulah and Tefillah). Thus, since there are supposed to be Tekios during
that Kaddish Shaleim they are not a Hefsek. In a different Kaddish, they may
well be. 

However, I am not sure your premise is correct. Is there a concept of Hefsek
where there are no Berachos involved? I can't think of any offhand. The
singing during Duchening is not a Hefsek in the Pasuk, because there is no
Din of Hefsek. (It is not a Hefsek in the berachah because the Mitzvah was
already started - similar to Shama Teisha Kolos B'yom.) The singing in
Kedusha of Shacharis and Mussaf is not a Hefsek in the Kedushah (even though
it often more than K'dei Ligmor Es Kulah) because there is no Din Hefsek,
and it isn't a Hefsek in the Chazaras Hashatz (where there _is_ a Din of
Hefsek) because it is not K'dei Ligmor the whole Chazaras Hashatz. And so on
and so forth...

KT and GYT,
MYG