by GEORGE ISAAC George Isaac is the principal 'cellist in the Swansea Symphony Orchestra. The works he will play tonight have never been performed before and they are all in manuscript form. The first work, ' Duo ', by the late Dr. Vaughan Thomas, was found by his son among his father's manuscripts. The .second work, ' Lullaby is a fragment composed by Tom Pickering specially for this recital. The three Miniatures are new compositions by a young Swansea composer, Leonard Morris.