Nostalgia is big business and the record industry loves a good anniversary reissue. Once or twice a decade, why not repackage an old album? Maybe remaster it. Maybe add a big pile of extra tracks no one thought it worth inflicting on the public before. For the 50th anniversary of his ‘Tea For The Tillerman’ album, Yusuf/Cat Stevens has done something different, though. He’s re-recorded the whole album anew, calling it ‘Tea For The Tillerman²’ or just ‘T4TT²’.