At last I've learned how to use Windows Movie Maker to put lyrics on the screen. The "Captions" function is cool! But the syncing of the lyrics display with the tune requires a little patience.
My latest creations with on-screen lyrics:-
Stranger on the Shore by Andy Williams
What Is A Youth by Glen Weston (from the movie "Romeo and Juliet")
The Hourglass Song (Blue Balloon) by Robby Benson (from the movie "Jeremy")