The brilliant Leon Rosselson is underrated only because his ideological leanings don't conform with the mainstream. He has been recording since the early 1960s, and this 4CD overview offers a superlative selection of his oeuvre, including material from vinyl albums that, unfortunately, are ever likely to be reissued in any other format. As a British songwriter, Rosselson is unequalled in the past half century. Much of his oeuvre is in the French chanson mould of Brassens, although he is invariably categorised, not surprisingly, as a folk singer. He surfaced in the early 1960s as Britain's answer to Tom Lehrer – but with a great deal more gravitas.