They played their first concert in 1969, and 40 years later the TP Orchestre Poly Rythmo de Cotonou, to give them their full name, had their UK debut last night at the Barbican as part of their first European tour. They are the latest expression of a growing cult of classic bands who hit their peak in 1970s Africa. The music of Nigeria’s Fela Kuti has never been more popular, strange jazz from 1970s Addis Ababa has been selling impressively on the Ethiopiques series of records, while Senegal’s Orchestre Baobab have reformed to great acclaim.