Expectations were high when these Brits first played the Festival, in 2012, on the stage of the old Montreux Jazz Café. They’d barely finished their first album and everyone was already calling this folk-infused indie-rock group the next big thing on the alternative scene. Three years later and the quintet that had become a trio was back in the Lab to present This Is All Yours, recorded between two intensive tours where the group was headlining European festivals. After a year of silence, Alt-J are getting ready to unveil their latest album Relaxer. The first song off it, “3WW”, promises a meditative atmosphere with melancholy sounds. Three albums and just as many concerts at the Montreux Jazz Festival!