Heavy Metal or simply Metal is a branch of rock music which started developing in the late 60s and early 70s, mostly in England and the United States. Heavy Metal has roots in blues-rock and psychedelic rock. It has usually a thick, massive sound using highly amplified distortion, extended guitar solos, emphatic beats, and overall loudness. Lyrics and style of performance in Heavy Metal has generally a manly tone and is very masculinity.
A typical Heavy Metal band includes a drummer, a bassist, a rhythm guitarist, a lead guitarist, and a singer, who may or may not be an instrumentalist. A keyboard could be used if needed but it’s not necessary. Although there are different instrument in Heavy Metal music, but electric guitar is the key element. And of course when talking about electric guitar, it also means distortion pedals and amplifiers to create a thick, powerful and "heavy" sound.
A lot of people consider the first true heavy metal recording to be when the San Francisco band Blue Cheer released a cover of Eddie Cochran's classic "Summertime Blues" from their debut album “Vincebus Eruptum” in January of 1968. The same month, Steppenwolf released its self-titled debut album, including "Born to Be Wild" with its "heavy metal" lyric.
"Revolution" by Beatles with its redlined guitar and drum sound, set new standards for distortion in a top-selling context in August 1968. And then soon after that heavy metal bands such as Led Zeppelin, Black Sabbath, and Deep Purple attracted large audiences.
In January 1969, Led Zeppelin's self-titled debut album was released and reached number 10 on the Billboard album chart. The same year Led Zeppelin II went to number 1 and the album's single "Whole Lotta Love" hit number 4 on the Billboard pop chart. The metal revolution had been started.
In 1970, Black Sabbath with "Paranoid" and Deep Purple with "Black Night" scored major UK chart hits. In the same year some famous metal groups such as Judas...