Types of Insomnia. There are two types of insomnia: primary insomnia and secondary insomnia. 1  Primary insomnia: Primary insomnia means that a person is having sleep problems that are not directly associated with any other health condition or problem.
System of a Down's music has variously been termed alternative metal, nu metal, hard rock, progressive metal, thrash metal, art rock and avant-garde metal.
Poor Joe. At least he can see the funny side of it, writing on his own website that the 1998 album featured âthe song âZeldaâ as unintentionally made famous by System of a Downâ. To make up for it, you could go to Joeâs site and listen to some of his (and his bandâs) stuff.