You should look to learn at least 1 or 2 new songs a week. When you hear something on the radio or wherever (old or new), write down the artists' name and buy the CD or ask someone if they have it and if they can burn it for you. I have been playing for over 15 years and love to learn 1 or 2 new songs a week. New stuff comes out constantly and I want to stay on top of the music. Finding time between work, rehearsals, recreation and family obligations, it's tough finding the time, but dedicated musicians make the sacrifice.