The LJO Vortex Sessions, 28 years old, is London’s longest jazz residency. The band goes from strength to strength, attracting London’s top players and writers, from Kenny Wheeler and John Taylor in the early days to the exciting current lineup. This month’s concert features the writing and trumpet playing of Henry Lowther, one of the UKs foremost jazz musicians who has played with everyone including John Dankworth, Mike Westbrook, Kenny Wheeler & Stan Sulzmann.