What can you say about John Denver? As one of pop music's five all-time best-selling artists and a tireless ambassador of peace and goodwill, the beauty and inspiration of Christmas like a Lullaby should come as no surprise. The title cut, with words and music by Denver, is the prelude to a dozen songs, both familiar and more obscure, that capture and intimately convey the spirit of the holiday season. The supporting cast of musicians is no less than sensational, with Glen D. Hardin