And now our joke linked by many sites:
A guy and his Saint-Bernard walk into a bar. The guy says to the bartender, "This dog knows everything about music and can answer any question you have".
The bartender says, "You're nuts!" The guy says, "Go ahead -- ask him something".
So the bartender says to the dog, "OK, who is the greatest contrapuntal composer of the 17th century?"
The dog replies,"BACH". The bartender says, "Aw, c'mon he's just barking, he doesn't know anything".
The guy says, "Hey, go ahead, ask him something else".
The bartender tries again. "OK, who was the greatest composer of lieder of the late 19th century?" The dog replies, "Wolf". The bartender says, "This is ridiculous -- he's just barking. Get lost!"
The guy says, "No he's not -- go ahead, one more time, ask him a question". Disgustedly, the bartender tries again. "Who was the greatest German composer between the two world wars?"
The dog answers, "Orff". The bartender says, "That's it!" and proceeds to physically toss the guy and his dog out of the bar onto the sidewalk on their behinds.
The dog looks back at the guy and, from the street, tries once more: "Hindemith?"