By the beautiful,blue Danuge,Waltz,op.314 By the Beautiful Blue Danube Waltz,op.314 By the Beautiful,Blue Danube. Waltz, op.314 On the beautiful blue Danube, op.314 On the beautiful blue danube, Op.314 The beautiful blue Danube - waltz, op.314 On the Beautiful Blue Danube Waltz, Op. 314 On the Beautiful Blue Danube Waltz, Op. 314; On The Beautiful Blue Danube - Waltz,Op.314 By The Beautiful Blue Danube,Op.314