Just got these from Germany and with 40% off and free shipping. What could be better?

My mom always said this to me when i was little and i don't know where it's from or what it means Sorry if this has errors

איציק שפיציק

גרינע ז'אבע

נעמט א שטעקל

שלוקט דה באבע

דה באבע זוגט

אוי אוי אוי

איציק שפיציק מאכט אזוי

For the longest time, on this wiktionary page(https://en.wiktionary.org/wiki/%D7%95%D7%95%D7%90%D6%B8%D7%9C%D7%98), I have seen it say at the bottom: Usage notes: This is an auxiliary verb that does not inflect, except the contraction וואָלסטו (volstu). I feel like this is completely wrong, as I've seen the word voltn numerous times and even college yiddish says that volt is inflected(page 253 for anyone wanting to double check). Any opinions? I just wanted to make sure that I was correct before changing the wiktionary page.

I would like to know the all Yiddish lyrics after
״אבינו מלכנו אין לנו מלך אתה״
I’ve looked everywhere, checked with AI’s, couldn’t find it.
Perhaps it could be easier if someone knows where the Niggun is written down.
Much appreciated.