Hello brothers and sisters. I have a question for you all. First, I am a beginner who has been playing at my church for about a year. The other day we were practicing for a concert, and there were a couple of other bass players that were invited to play with the choir. Both the guys were more advanced than I am. While I could play every song that they played, my playing did not sound as full as theirs. I was talking to one guy who was giving me some pointers on playing. He told me to" Play in the Pocket". After he said that he was called to do something else, and we never finished the conversation. Can you all explain to me what that means.