変ニ長調
In orchestral music, the examples are fewer. Gustav Mahler concluded his last completed Ninth Symphony with an adagio in D-flat major, rather than the home key of D major of the first movement. Anton Bruckner wrote the third movement of his Symphony No. 8 in D-flat major, while every other movement is in C minor. Antonín Dvořák wrote the second movement of his Symphony No. 9 in D-flat major, while every other movement is in E minor. The first piano concerto of Sergei Prokofiev is also written in D-flat major, with a short slow movement in G-sharp minor. Aram Khachaturian wrote his Piano Concerto, Op. 38, in the key of D-flat major. Choral writing explores D-flat infrequently, notable examples being Robert Schumann's "Requiem", Op. 148, Gabriel Fauré's "Cantique de Jean Racine" and Sergei Rachmaninoff's "Nunc Dimittis" from his All-Night Vigil, Op. 37. Vincent d'Indy's String Quartet No. 3, Op. 96, is in D-flat.