Long before iTunes, Spotify and Pandora there were…Mix Tapes! Pop a blank cassette tape into a boom box and you could make an exercise mix, a romantic mix, or a party mix from any artists you liked. This July, we’re making a Mix Tape of our own with message tracks on four different topics from various communicators. So pop on in to NStar this summer and give a listen to messages on idolatry, insecurity, do-overs and courage in our new series, “Mix Tape!”