Honestly, for DVHL games, the music gets old after like the 3rd stoppage in the first period, especially for games before noon. Nothing is worse than someone blasting music at 8am for squirt game with 20 people in the stands. I've run the clock for years for my son's team and I've never once played music. Every so often I've had another parent in there with me who will play something. What they don't get is that the music they are playing is not what the kids want to hear. I had a parent play "From Whom the Bells Toll" during warms ups. It is actually a great song for warm ups because it 5 minutes long and has this slow build up. After the game the kid told his dad never to play that again, rest of the team had no idea what it was and hated it.
Now for HS schools, I don't mind it as much. Games are usually at night and have a lot more people attending so it is more of a party atmosphere. And for the most part the person running the clock is a high school aged so they know what the players will want to hear. I just don't need it after every single stoppage.