St. Louis All-Suburban Band Information. The registration window opens Oct. 3 and will close on Friday, Oct. 14. This is a hard deadline. You may do it at school if you wish. Go to: www.slsmea.com, locate the Band Honor Groups link and click on the Online Registration Link. I will eventually get a page of all the students who have registered and then a time at which you are expected to audition. This year's auditions will be held at Parkway North High School. Please review the information on the audition info below.