I can get down with background type music, instrumental or the radio, at any given time playing cards. It can prevent boredom, get you comfortable at the table so you don't make bad / hasty decisions.
Sometimes if I need some inspiration or motivation to boost my brain activity, I could choose to play some of my favorite songs, but just for a boost. I don't want to be clicking elsewhere to change songs or a station, so I rather the music coming from the TV or radio.