There are lots of swing charts based on blues changes, but this one is in a class of its own! Because I Said So features an attention-grabbing intro, unison ensemble melodies, sectional trades, and an optional open solo section with suggested solos included, all the while swinging along at 160 bpm.  After the solos there's a soft interlude featuring your bass player with tasty, written solo licks, then an even quieter ensemble section leading to a shout chorus that really shouts! Interesting, fun and playable, this one is very highly recommended!