Push is the perfect name for pianist Jacky Terrasson’s Concord debut. He’s a jazz adventurer who pushes his band, and pushes the music, twisting and turning it into new territory in the process. That’s the case with both originals and his treatment of standard material. Standard, that is, until he starts tweaking it. Take the unlikely combination of Michael Jackson’s “Beat It” and the jazz standard “Body and Soul.” Listen close. Rather than build a front-and back medley as many musicians would, Terrasson borrows key melodic snippets from each tune, then mashes them as building blocks for his own odyssey. First a hint of one, a minute into the tune, then a bit later, the other. Then back and forth.