I played a casual round at Corbin Park(short tight city course) with a friend last week. He has speakers attached to his bag, playing a LOW volume mix of music.LS- Freebird, some old buttroc, bits of top 40 maybe(a variety of music) Super cool and enjoyable for this place. Its a city course, in town and the music was fine, if not good to listen to.
If it was durring a tourney or weekly league play maybe im not so inclined to hear music. When i go out to Farragut St park, even playing casual w/buddies i might not want to hear music but be able to hear the sounds of the woods all around me. Listening to the Silence of the forest is probabbly more pleasing to me there.
However if i go out to a CITY course, ie Downriver, Lakewood, SeeTac where shared use is the norm i would enjoy some tunes to help smooth out the sounds of the city. To each his/her own. Try and be corteous to the other park users. Everything in modreration except for putts. The less the better