Known for his large-scale compositions, Leonard Bernstein also wrote for his own instrument, the piano. The sequence of four Anniversaries, published between 1944 and 1989, are brief, deftly evocative vignettes written to celebrate his many friends, colleagues and family members. The early Piano Sonata is imbued with youthful self-confidence, and explores certain compositional techniques to which he was to return in more mature works. The rhythmically incisive Music for the Dance No. II is another important early work.