There’s something deceptive in the simplicity of Ben Allison’s music. The bassist-composer not only appreciates pop, he has a knack for crafting the kind of catchy themes that tickle audiences but still stimulate his talented band mates. Regardless of how intricate the bob ‘n’ weave gets onstage, focus is always up front on the man in charge. Hang out with cuts like “Green Al” or “Man Size Safe” for a bit and get ready to scratch your head regarding how he actually does it. This group boasts the earthy smarts of trumpeter Jeremy Pelt, who lets sass ride shotgun wherever he goes, and the judicious honk of saxophonist Michael Blake. Expect Allison’s scripts to get them all revved up.