Dreimal sieben Gedichte aus Albert Girauds "Pierrot lunaire" ("Three times Seven Poems from Albert Giraud's 'Pierrot lunaire'"), commonly known simply as Pierrot lunaire, Op. 21 ("Moonstruck Pierrot" or "Pierrot in the Moonlight"), is a melodrama by Arnold Schoenberg. It is a setting of 21 selected poems from Albert Giraud's cycle of the same name as translated into German by Otto Erich Hartleben.The work is written for reciter (voice-type unspecified in the score, but traditionally performed by a soprano) who delivers the poems in the Sprechstimme style accompanied by a small instrumental ensemble. Schoenberg had previously used a combination of spoken text with instrumental accompaniment, called "melodrama", in the summer-wind narrative of the Gurre-Lieder, which was a fashionable musical style popular at the end of the nineteenth century. Though the music is atonal, it does not employ Schoenberg's twelve-tone technique, which he did not use until 1921.
Pierrot lunaire is among Schoenberg's most celebrated and frequently performed works. Its instrumentation – flute, clarinet, violin, cello, and piano with standard doublings and in this case with the addition of a vocalist – is an important ensemble in 20th- and 21st-century classical music and is referred to as a Pierrot ensemble.
