Worth mentioning that the "Friday Morn as we set sail" version mentioned a couple of times a way back, and the variant cited in the post just above, are versions of Child #289, The Mermaid..

Also that the legend is referenced by the name of the charming but dysfunctional heroine of Anita Loos' delightful novel Gentlemen Prefer Blondes [1925], Lorelei Lee -- the forename given to her by one of her gentlemen-admirers in reference to the legend: "This prompted Judge Hibbard to buy a ticket to Hollywood for her so that she could use her talent to become a professional actress. He also names her 'Lorelei' because he believed it expressed her personality." Wikipedia -- "which," as Lorelei ingenuously explains for the reader's benefit, "is the name of a girl who became famous for sitting on a rock in Germany." It is perhaps of significance that she is herself a native of Little Rock.   

~M~