Amirreza Kheiri is an Iranian musician and record producer. He also known as the founder, lead guitarist, singer and songwriter of the band Concept, as well as being a solo artist. Amirreza is a self-taught producer, audio engineer & guitar player, playing other instruments as needed, including bass guitar, keyboard & trumpet. His influences and work have ecompassed diverse genres such as rock, metal, jazz, soul, electronic and others.