All the time. Aaaallll the time. You don't get better at playing/writing music or inspired by music unless you're constantly listening to it and learning from it, so I'm always listening to some form of music from my iTunes. I never listen to the radio or anything like that, unless I'm at work and we're doing something that my headphones need to be out f my ears for, and some other tradie brought a radio to work... those days make me sad.