Variations on a Theme by Haydn, op.56a Variations on a Theme by Haydn, OP. 56a Variations on a theme by Joseph Haydn, op. 56a Variations on a theme by Joseph Haydn, op.56a Variations on a Theme by J.Haydn,Op.56a Variations on a theme by Joseph Haydn op.56a Variations on a theme by paganini, op. 35 Variations on a Theme by Joseph Haydn,op.56a Variations on a theme by paganini, op.35 Variations sur un theme de Haydn op. 56a