Poetry, I feel, is a tyrannical discipline," we hear Sylvia Plath say it was not as tough on her, perhaps, as her own inner life Plath's readings of her most personal works, such as 'Daddy* and 'Lady Lazarus' are here counter-pointed by a nch shimmer of images, but it is her voice, rasping and awkwardly transat­lantic, that cuts to the heart of the poetry (SB)