Death metal is an extreme subgenre of heavy metal music. It typically employs heavily distorted and low-tuned guitars, played with techniques such as palm muting and tremolo picking; deep growling vocals; aggressive, powerful drumming, featuring double kick and blast beat techniques; minor keys or atonality; abrupt tempo, key, and time signature changes; and chromatic chord progressions. The lyrical themes of death metal may include slasher film-style violence, political conflict, religion, nature, philosophy, true crime and science fiction.
Nu metal is a subgenre of alternative metal that combines elements of heavy metal music with elements of other music genres such as hip hop, funk, industrial, and grunge. Nu metal rarely features guitar solos or other displays of musical technique, and emphasizes rhythm with instrumentation that is heavily syncopated. Nu metal guitarists typically use seven-string guitars that are down-tuned to produce a heavier sound. Vocal styles are often rhythmic and influenced by hip hop, and include singing, rapping, screaming and sometimes growling. DJs are occasionally featured to provide instrumentation such as sampling, turntable scratching and electronic background music. Nu metal is one of the key genres of the new wave of American heavy metal.
Thrash metal is an extreme subgenre of heavy metal music characterized by its overall aggression and fast tempo. The songs usually use fast percussive beats and low-register guitar riffs, overlaid with shredding-style lead guitar work.
Power metal is a subgenre of heavy metal combining characteristics of traditional heavy metal with speed metal, often within a symphonic context. Generally, power metal is characterized by a faster, lighter, and more uplifting sound, in contrast with the heaviness and dissonance prevalent in, for example, extreme metal. Power metal bands usually have anthemic songs with fantasy-based subject matter and strong choruses, thus creating a theatrical, dramatic and emotionally "powerful" sound.
Alternative metal is a genre of heavy metal music that combines heavy metal with influences from alternative rock and other genres not normally associated with metal. Alternative metal bands are often characterized by heavily downtuned, mid-paced guitar riffs, a mixture of accessible melodic vocals and harsh vocals and sometimes sounds that are unconventional within other heavy metal styles. The term has been in use since the 1980s, although it came into prominence in the 1990s.
A number of heavy metal genres have developed since the emergence of heavy metal during the late 1960s and early 1970s. At times, heavy metal genres may overlap or are difficult to distinguish, but they can be identified by a number of traits. They may differ in terms of instrumentation, tempo, song structure, vocal style, lyrics, guitar playing style, drumming style, and so on.
Melodic death metal is a subgenre of death metal that employs highly melodic guitar riffs, often borrowing from traditional heavy metal. The genre features the heaviness of death metal but with highly melodic or harmonized guitar riffs and solos, and often features high-pitched shrieked vocals alongside the low-pitched growls commonly featured in traditional death metal. Pioneered by the English heavy metal band Carcass with their 1993 album Heartwork, melodic death metal developed further in Sweden in the mid-1990s. The Swedish death metal scene did much to popularise the style, soon centering in the "Gothenburg metal" scene. At the Gates' Slaughter of the Soul, Dark Tranquillity's The Gallery, and In Flames' The Jester Race, all released in the mid-1990s, were highly influential albums in melodic death metal, with At the Gates and In Flames being the two most common influences on North American 2000s heavy metal bands. Many American heavy metal bands emulated At the Gates' sound, resulting in the usage of the phrase "At the Gates worship".
Extreme metal is a loosely defined umbrella term for a number of related heavy metal music subgenres that have developed since the early 1980s. It has been defined as a "cluster of metal subgenres characterized by sonic, verbal, and visual transgression".
Metalcore is a broadly defined fusion genre combining elements of extreme metal and hardcore punk, that originated in the late 1980s. Metalcore is noted for its use of breakdowns, which are slow, intense passages conducive to moshing, while other defining instrumentation includes heavy and percussive pedal point guitar riffs and double bass drumming. Vocalists in the genre typically perform screaming; more popular bands often combine this with the use of standard singing, usually during the bridge or chorus of a song. However, the death growl is also a popular technique within the genre.
American rock has its roots from 1940s and 1950s rock and roll, rhythm and blues, and country music, and also draws from folk music, jazz, blues, and classical music. American rock music was further influenced by the British Invasion of the American pop charts from 1964 and resulted in the development of psychedelic rock.
New York hardcore is both the hardcore punk music created in New York City and the subculture and lifestyle associated with that music. The scene established many aspects that are fixtures of hardcore punk today, including its simplified name "hardcore", its hardcore skinhead and youth crew subcultures, the moshing style hardcore dancing, its association with street gangs and its prominent influence of heavy metal.
Groove metal, sometimes also called neo-thrash or post-thrash, is a subgenre of heavy metal music that began in the early 1990s. The genre is primarily derived from thrash metal, but played in slower tempos, and making use of rhythmic guitar parts. It was pioneered in the late 1980s by groups like Exhorder, Prong and Bad Brains, and then popularized by the commercial success of Pantera, White Zombie, Machine Head and Sepultura. The genre went on to be influential in the development of the new wave of American heavy metal, nu metal and metalcore, and continued to gain traction in the 2000s with Lamb of God, DevilDriver and Five Finger Death Punch, and 2010s with Killer Be Killed and Bad Wolves.
Melodic hardcore is a broadly defined subgenre of hardcore punk with a strong emphasis on melody in its guitar work. It generally incorporates fast rhythms, melodic and often distorted guitar riffs, and vocal styles tending towards shouting and screaming. Nevertheless, the genre has been very diverse, with different bands showcasing very different styles. Many pioneering melodic hardcore bands, have proven influential across the spectrum of punk rock, as well as rock music more generally.
Metal: A Headbanger's Journey is a 2005 documentary film directed by Sam Dunn with Scot McFadyen and Jessica Wise. The film follows 31-year-old Dunn, a Canadian anthropologist, who has been a heavy metal fan since the age of 12. Dunn sets out across the world to uncover the various opinions on heavy metal music, including its origins, culture, controversy, and the reasons it is loved by so many people. The film made its debut at the 2005 Toronto International Film Festival, and was released as a two-disc special edition DVD in the US on 19 September 2006.
A number of overlapping punk rock subgenres have developed since the emergence of punk rock in the mid-1970s. Even though punk genres at times are difficult to segregate, they usually show differing characteristics in overall structures, instrumental and vocal styles, and tempo. However, sometimes a particular trait is common in several genres, and thus punk genres are normally grouped by a combination of traits.
Metal Evolution is a 2011 documentary series directed by anthropologist and filmmaker Sam Dunn and director, producer and music supervisor Scot McFadyen about heavy metal subgenres, with new episodes airing every Friday at 10 pm EST on MuchMore and Saturday at 10pm EST on VH1 Classic. Its origins come from Dunn's first documentary Metal: A Headbanger's Journey, which included the acclaimed "Heavy Metal Family Tree."
Nu metalcore is a fusion genre that combines elements of nu metal and metalcore. The genre often makes use of a combination of screamed and sung vocals, in addition to breakdowns, hip hop-influenced drum beats and electronic music elements.
Beatdown hardcore is a subgenre of hardcore punk which incorporates elements of thrash metal and hip hop. The genre features aggressive vocals, heavy, palm muted guitar riffs and breakdowns. The genre has its origins in late 1980s tough guy hardcore bands such as Breakdown, Killing Time, and Madball, and was pioneered in the mid-1990s by bands like Bulldoze, Terror Zone, and Neglect. The definition of the genre has expanded over time to incorporate artists increasingly indebted to metal, notably Xibalba, Sunami, and Knocked Loose. Later acts also feature slam death metal riffs.
