Ayreon is the flagship musical project by Dutch composer and multi-instrumentalist Arjen Anthony Lucassen. The musical style of Ayreon draws mainly from heavy metal and progressive rock, but also incorporates aspects of other genres such as folk, classical and electronica, resulting in the unique "Ayreon sound." Most Ayreon albums are classified as "rock operas" due to their complex storylines that feature a host of characters, each of which is represented by a individual vocalist. .