Langford's career had a notable relationship with the BBC. Some of his compositions and arrangements were used as "Test Card" music in the 1960s and '70s, with such titles as "Hebridean Hoedown", "The Lark in the Clear Air" and "Royal Daffodil" being remembered by Test Card aficionados. He also wrote and arranged music for "Friday Night is Music Night", as well as numerous other BBC programmes. A CD of his original compositions for orchestra performed by the BBC Concert Orchestra conducted by Rumon Gamba was released in 2003.