BMA: How long have you been playing the cello? David Beck: I started cello in third grade, so I think 45 years. I also took up tuba in middle school, so I've been playing that for 40 years. BMA: Music teachers in Bethlehem have a busy schedule. Tell us what classes or events you’re looking forward to this year and next. David Beck: I'm really looking forward to having full ensemble rehearsals again this year. There is an energy that takes over a room when you have lots of stu