Yes, it was fun to read.

Acc. to the unabridged dictionary, a burd is "a lady; a young woman of good birth." It comments that it may come from the same root as "bride."

Now what we need to do is make up some verses in which the youngest son is a musician. Then we can find parallels with the tale of Orpheus.

I remember reading a poem in middle English called "Orfeo." Same theme.