I play, among others, a trio of keyboards, guitar, drums, with me on LH bass. We usually open with an instrumental, Green Onions, Blue Monk (usually tied to Everyday I Have The Blues), or a swing standard. In our last gig, we did a swing version of Billie Jean, Moon Over Bourbon Street, some slow T-Bone Walker blues, etc. It all depends on the crowd, if we are playing in a small dinner bistro, it's more jazz oriented, if it's more like a club, we include faster shuffles and some classic rock-ish tunes (eg Black Magic Woman).