The Key is the debut album by progressive metal band Operation: Mindcrime. It is the first in a concept album trilogy on virtual currencies, internet banking and stock trading.[3] It was released on September 18, 2015. The first single, titled “Re-Inventing the Future” was released on July 28, 2015, and two more, “Burn” and “The Fall” were released on August 19, 2015. The fourth and fifth singles, “The Stranger” and “Hearing Voices,” were released on September 1 and 9, 2015, respectively.