`   From the Hood quote it certainly looks as though it's altered enough (and both versions were successful enough) for each to have a separate article - that's one issue. (Although I do wonder about the 1983 Sadler's Wells version. If it had a new book and lyrics, it clearly wasn't Hood and Ross's version - so is it a version of Count, or of Graf? Does anyone know about the music?)  As for the other - I'd say it's definitely an operetta. Unless we can prove some substantial alteration of the music - style, vocal range, whatnot - it's the music from an operetta, and the show is an operetta.  On an unrelated note, doesn't anyone who's already worked on this article know how the plot resolves? ``Things work out okay and there's pretty music`` isn't quote what one hopes to get out of a synopsis.`