In the twenties & Thirties the singer invariably got half royalites on the premise of poularising the song. AND didn't Sammy Cahn pay Nat King Cole $50K to record and popularise a song that Nat admitted later he would have paid himself for the opportunity of setting the benchmark on such a prize. Can't remeber the Title but it was a biggie. Itsa funny old music world innit?
Why someone will claim, not only the authorship, but the arrangement thereof of Scarborough Fair next.