Here, recommended to me by Alan Light, is a neat little site. It's called Let Them Sing It For You. Someone has excerpted what must be thousands of songs and selected individual words. You type in a line or lyric and then, assuming it find those words in its database, the program plays back what you typed. The first word might be from a Hendrix record, the second from the Beatles, the third from Sinatra and so on. You have to make the phrase simple but it does work.