MATIX GRATEFUL SHRED TOUR Posted on September 1, 2006 at 10:18 am. Written by normurai The Matix team will be in town Sunday September 24 for an autograph signing and demo. Come see Marc Johnson, Daewon Song, Rick McCrank and more… Signing: Source 17th Ave. S.W. @ 3pm Demo: Millennium @ 5pm. × Comments are closed.