Which is the basis of XXX?
Pierrot Lunaire
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.