How many words does a song have to have?

Answer 1

There is no required number. A song can have as few as no words. In that case the song is vocalized if it is intended for human singing, or it may be one of Mendelssohn's Songs Without Words. They can have one word, as is the case with several worship songs called Alleluias.

Answer 2

It doesn't matter how long a song is. You do it the way you want!!

Answer 3

as many as yo want