Putter is a modern & attractive Golf Club WordPress Theme.
Demo: https://themeforest.net/item/putter-golf-course-playing-ground-wordpress-theme/38034779
On iPhone, most music apps let you play music in the background. After all, they'd be virtually useless if they couldn't. For video apps that's not the case which - again - makes sense, since you can't watch videos with your iPhone locked and the phone in standby.