The legato lines, delicate ornamentations, and colors that grace Chopin’s solo piano works are also found in his music for other instruments. There is not a single composition by him that does not involve the keyboard, including a small handful of works that prominently feature the cello. The Introduction and Polonaise brillante and Cello Sonata in G Minor are two of these rarities. While the former is a sparkling showpiece, the latter is an intense, highly emotive work. One of his early compositions, Chopin’s Piano Concerto No. 2 is also noteworthy for its Romantic middle movement and rollicking finale: a zesty Polish mazurka.