I had never heard or heard of "Es wollt ein Mädglein früh aufstehn" until coming across it in
Lieder, Songs und Gospels 2
. This is an ancient (16th century) German folksong of a young maiden scooting off into the forest to pick blackberries. This innocent lass manages to get herself seduced by a handsome squire's son. Some nine months later she has a baby child in her lap (as the song delicately puts it), her innocence is absolute and she has no idea where or how the baby got there. She wonders whether it could have been the blackberries.
The moral of the song, given in the last verse, is that honest girls are not to be sent into the woods because blackberries grow there and they ripen quickly. Do you get it, dear surfer? A bit obscure, what! Probably not, but it doesn't make much sense in the original German either.