The Piano Concerto in D minor is a moody, chromatic work of passionate, troubled, and dramatic outbursts. The work was a favorite of 19th century musiciansin spite of its 75-measure "happy ending" in D major. Nineteenth century musicians typically did not like "happy endings" in intensely dramatic, turbulent works such as this concerto. The Piano Concerto in D minor is the first of only two concertos Mozart wrote in minor keys. The other is the Piano Concerto in C minor.