Frédéric Chopin: Polonaise Op. 71 No. 2 in B-flat Major from Polonaises - piano sheet music to print instantly. This piece is level 8+ and was composed during the Early Romantic period. This piece is composed by Frédéric Chopin and was published in 1828. Title: Polonaise, Op. 71 No. 2 in B-flat Major from Polonaises. The difficulty level if graded by ABRSM would be approximately 8+ and it belongs to the Early Romantic period.