A one-hit wonder

I've been listening to music this afternoon while visiting the various blogs I keep an eye on on which I keep an eye. One of pieces was the slow movement from Mozart's clarinet concerto. Mozart, of course, was a genius, a boy wonder who composed so much music that is still loved by many. But what about another of my favourite pieces, the intermezzo from Cavalleria Rusticana? This is probably the only piece of music written by Pietro Mascagni that is ever heard these days (although I did see the opera performed many years ago). A true one-hit wonder.