I play the song as The Rake's Lament, as per the Digitrad version, but add the verse which appears in 'Streets of Laredo' where the narrator is asked to fetch a cup of cool water and then the poor boy dies. That seems to complete the song nicely for me but I've not seen a version of the song which contains that verse this side of the Atlantic. Just seems right to me to have it in, but I guess that's the oral tradition for you!