Some musicians have such an illustrious career, have been around making culturally important music for so long, that they have become titanic figures with an enormous amount of gravitas and pull. A lot of them tend to be British, it seems - Brian Eno for example, who has recently found success on production duties for Coldplay's Viva La Vida. Another is undoubtedly Peter Gabriel, eccentric singer and frontman of the early era of prog rock ...