Change the New Mail Sound in Opera

A film about a typical day and the typical music in the life of The Beatles -- their first, A Hard Day's Night -- was inspiration enough for the first made-for-and-by TV band. On September 12 1966, "The Monkees" were born. The show won an Emmy (for outstanding comedy).
Why not make "Hey, hey we're the Mokees — and we don't monkey around" your new mail sound in Opera? But you can choose anything you like, of course:
Play your favorite tune when new mail is waiting in Opera.