Scriabin tried using different harmonies in his music. He had a favourite chord which he called his “mystic chord” (from the bottom upwards: C, F sharp, B flat, E, A, D). He used it in lots of ways. His orchestral works include a Piano Concerto, 3 symphonies, "Le poème de l’extase" ("The poem of extasy") and "Prométhée, le poème du feu" ("Prometheus, the poem of fire"). His music which is mysterious and dream-like and shares some similarity French Impressionist composers like Debussy.