CSB Copper Street Brass Thursday, May 4th Sheldon High School - 7:30pm Become a member of the Civic Music Association! Contact Lyle Hollander 712-475-2634 or 712-348-2114 Ihollander@frontiernet.net for more information. I M CSB Copper Street Brass Thursday , May 4th Sheldon High School - 7:30 pm Become a member of the Civic Music Association ! Contact Lyle Hollander 712-475-2634 or 712-348-2114 Ihollander@frontiernet.net for more information . I M