What is "Muzak"?

Sometimes catchy, but sometimes annoying, especially on an elevator!

wow!! very interesting to know. doctors offices, elevator, grocery store musack!

Didn’t it used to be called elevator music?

Saw a tidbit in the paper one day that Paul McCartney makes one nickel each time Yesterday is played. Because of Muzak alone, he makes $1,000,000 a year!

can't stand it

I already knew this!!