Messiaen wrote a lot of organ music which he performed himself. One very popular work is called "Transports de joie" ("Outburst of joy"). It is one of four pieces called "L'Ascension" (The Ascension). A much longer work, consisting of nine movements, is the "La Nativité du Seigneur" ("The Birth of our Lord"). The last movement of this piece is a toccata called "Dieu parmi nous" ("God among us"). It has become a favourite piece for organists to play at recitals or after Christmas carol services.