The Dean of St Finbarr's Cathedral, the Very Rev J.M.G. Carey, said prayers for jazz musicians and their festival during Sunday Service. Not that the corkers in the Metropole Hotel would have been in a position to notice the extra surge of grace. For them it could have been anyone of the "highs" of the Hallowe'en bank holiday weekend which Cork and Guinness' have transformed into a dithyramb of unparalleled abandon. By Lyn Geldof