E-flat minor
One of the few symphonies written in this key is Prokofiev's Symphony No. 6. A few other Soviet composers also wrote symphonies in this key, such as Eshpai, Janis Ivanovs (fourth symphony Atlantis, 1941), Ovchinnikov and Myaskovsky. Rachmaninov's "Elegie", Op. 3 No. 1 is in E-flat minor, as is his Études-Tableaux Op. 39 #5. These pieces are noted for being dark and mysterious, a mood this key has. This mood is shown even in the later jazz music "'Round Midnight" and "Take Five", which are also in the key.