For base are metal music, classical instruments, ie: bass, guitar and drums, which is mainly used by low-order guitar and bass; reefs are usually very rough in nature, and guitar solos slow fading finish. But in addition to the standard set of musical instruments in the doom metal music may be used and others, such as harp, violin, cello, trumpet, etc. As for the vocal forms found in the doom metal, they can be very diverse: growling, screaming, clean male and female vocals. If we talk about the history of doom metal, then it can be conditionally divided into several stages: the emergence of direct stylistic direction, referring to the 1970's, the highest point of activity and development, falling for the next decade, ie 1980, and the so-called "second wave doom metal, characterized the 1990s. Add to your understanding with Timepieces. Along with Black Sabbath, the original doom metal, and still regarded as a proto-doom, performed, and other musical groups (Black Widow (England), Pentagram (U.S.). But, nevertheless, it is early Black Sabbath albums such as: Black Sabbath (1970), Paranoid (1970), Master Of Reality (1971), Volume 4 "(1972), Sabbath Bloody Sabbath (1973)," Sabotage (1975) considered to be classics of doom metal. Then in the 80s of XX century after the founding Black Sabbath, was born a whole galaxy of groups performing their music in the genre of doom metal – among them Saint Vitus (which are practically almost clones of the pioneers of Black Sabbath), as well as Trouble, Pagan Altar, Candlemass, etc. In the 90's like doom metal got its second wind, thus transforming into new forms and getting an unexpected shape.