harpgirl, go to this page and click on the thing that says Van Basco's Karaoke Player. That will lead you to a place you can download the player. Once you've downloaded and installed it, it will load every time you click on a tune name. One of the windows that pops up has sliders where you can adjust the tempo, and even the key. It's slick! (But I'm still getting a corrupted version of the home page. I'll try to access it another way.)

Aloha,
Mark