Four80East gives the people what they want: the groove, the whole groove, and nothing but the groove. Co-leaders Rob DeBoer and Tony Grace lay it down on keyboards and percussion, respectively. But they couldn't do it without the rhythm guitar of Mark Jackson and the infectious saxophone riffs of Mike MacArthur. And bassist Anthony Mackey and drummer Chris Wright hold the groove together. Four80East takes the stage at Anthology on Friday night, after an opening set by Rochester's own funk-jazz trio Paradigm Shift.