Tunes in Davening

I would think repeating words is not proper. Also, I hate singing during davening.

I happen to love tunes in davening. Rav Moshe has a teshuva on this in which he says it isn’t proper to repeat words in davening, but that “Chazzanim will be chazzanim,” i.e. that if a chazzan repeats words, it’s not the end of the world. Incidentally, there is one instance in which you are supposed to remove the chazzan if he repeats a word, and that is if he repeats the word “Modim” in “Modim Anachnu Lach,” because to say “Modim Modim” would be to imply that we were agknowledging multiple gods chas veshalom.

I also love tunes when davening. I often find it very interesting when I realize how many different tunes there are for the same passages. It depends where you come from and/or who trained you, etc. I think that singing various passages somehow elevates the message and carries to Hashem in a more respectful manner. If there were no need for singing when davening, there would be no need for Chazzanim. (IMHO)

I don’t have Igrot Moshe handy at the moment, but from this website: http://www.chaburas.org/repeat.html it seems like it is OC 2:22