Jllfan:
Here is something you might like to try with vocals.
I did a decent cut of Moonlight in Vermont with a Female vocalist.
Later, I wrote some words about my favorite golf course and sang them into an open track. Then, by careful mixing, I had the female's cut running nicely in the background of my vocal. Love to experiment. Although it may sound confusing, the final mix came out pretty neat.
Green Hornet