David Bowie’s longest-serving band member has said his one regret is taking playing alongside the late musician “for granted”. Pianist Mike Garson said during the hundreds of shows they played together he had been so “narrowly focused” on his own performance he had not appreciated “the big picture”. The 76-year-old, who played on nine of Bowie’s studio albums from 1973 to the 2000s, is bringing together a host of well-known artists for the second year running to celebrate the singer and his work.