Peer Gynt, Op. 23 is the incidental music to Henrik Ibsen's 1867 play of the same name, written by the Norwegian composer Edvard Grieg in 1875. It premiered along with the play on 24 February 1876 in Christiania (now Oslo).
The complete score of the incidental music includes several songs and choral pieces. The complete score was believed to be lost until the 1980s and has only been performed in its entirety since then
