"Just leave a name and number that I can call,
Or a message or anything at all.
There ain 't no frustration
Like no conversation . . . Ba da dah!"
That recorded message, backed by a bluesy jive, greets anyone who phones Boston-based Singer Ralph Graham when he is not at home. A call to the Manhattan apartment of Warren Farrell, a spokesman for the men's liberation movement, evokes the answer: "Hi, this is Warren and Ursie's answering machine. They are out right now and I'm kind of lonely. Would you let your voice fall...