This is the 15552nd most frequent German word.
vum
"Vum" is not a standard German word. It may be a typo or a regional/colloquial term.
The word 'vum' is a contracted form of 'von dem', meaning 'from the' in this context.
Ich habe etwas vum Kuchen genommen.
I took some from the cake.
Here, 'vum' indicates 'from the', referring to the source of the birthday song.
Das Geburtstagslied kam vum Freundeskreis.
The birthday song came from the circle of friends.
In this sentence, 'vum' signifies 'of the', describing possession or association with the old village.