During a 2015 European tour with the blues-rock collective the Tedeschi Trucks Band, members of the group—including the ever-busy bassist Tim Lefebvre, the Grammy Award–winning saxophonist Kebbi Williams, and dual drumming monsters J. J. Johnson and Tyler “Falcon” Greenwell—booked an impromptu gig on an off night at the A-Trane jazz club in Berlin, Germany.