Quartet Jokes

What's the definition of a male quartet?
Three man and a tenor.

Baer's Quartet: What's good politics is bad economics; what's bad politics is good economics; what's good economics is bad politics; what's bad economics is good politics. - Eugene Baer (Baer also allows that it can be restated somewhat more compactly as "What's good politics is bad economics and vice versa, vice versa.")

Q: What do you call a male quartet? A: Three men and a tenor.