Before they start singing (which I can say with certainty is a nonsense song that doesn’t mean anything), what are they saying to each other?
Imperfect: I’m not German nor fluent.
“The two of us are going to sing a little song now. . . but actually to do that we need to be [something-- can’t catch it]
Yeah.
Where? (some other slurred “who?” “Why” question word.
Manna Manna.
Oh, [somthing] do you want to help us sing the song?
Manna manna.
Do you know what he means? Is that a song?
Manna Manna”
“… we still need a boy.”