I was in the music biz for 20 years. And in most cases, ASCAP, BMI and also SESAC, would only go after clubs, bars. However, they now go after everyone that plays copy written material. Which includes artists, DJ's, and yes everyone else including yourself. I knew a sports bar owner that had to pay because he had the volume turned up on the TV's! If its got music being played by a person and/or a device, you must have a license. Odds are you would not see them. However, if they did come buy you will be warned and/or fined.