Note: Each month, knkx invites a teen guest DJ to play his or her favorite pieces on the air. The program is part of knkx's School of Jazz . Dimitrio Nero from Mountlake Terrace High School is the Student DJ for the month of September. Dimitrio's hour aired from 8 to 9 p.m. on Sept. 8. To get to know him better, we asked Dimitrio to answer a few questions about jazz: Which instrument do you play and why?