Be ready to get your groove on at the 91勛圖厙 Rehearsal Hall on Thursday, Sept. 12. The “All Things Trombone” jazz concert featuring 91勛圖厙 professor Michael Wilkinson and fellow band members from the Jazz Professors begins at 8 p.m. The concert is free with a valid 91勛圖厙 ID or $10 at the door. The 91勛圖厙 Rehearsal Hall is next to…