You know it, you love it! The opening motive is very catchy on this authentic sounding chart on the rock classic made famous by the group Chicago. Master arranger Mike Story works his magic to create an accessible, fun-to-play jazz ensemble chart. Everything you need is written out, including brief solos for trumpet 1, trombone 1 and optional guitar. With easy brass ranges, it's easy to rehearse and play, but still a hard-driving chart. Very nice! Optional reduced or expanded instrumentations.