By then America began to worship the posturing and volume of what became known as Heavy Metal. Pioneered by Cream, Jimi Hendrix, and Jeff Beck and culminated by Led Zeppelin, Black Sabbath, and Deep Purple, the term ?˜Heavy Metal??was characterised by heavy guitar riffs/ostinato, a high register male vocal and more punch particularly in the lower frequencies of the bass drum and bass guitar.

Britain started the 1970?™s pointing towards a hybrid known as ?˜Glam-rock?? which produced Marc Bolan, David Bowie, and groups such as Slade and The Sweet. Their theatrical style of dress (which consisted of heavy make-up and women?™s clothes) further emphasised the sartorial overkill of Psychedelia.

The advance in technology would give birth to a genre of Progressive rock groups such as Genesis and Yes, followed by E.L.O., Supertramp, Queen, and 10cc ??The recording process itself had become much more sophisticated and the expansion of multitracking enabled artists to isolate each instrument and use a myriad of multi-layered harmony vocals creating an orchestral sound which would give these bands their trademark.

Bob Marley and the Wailers introduced Reggae and Ska to the international community after being signed to London?™s Island Records. (Reggae is a Jamaican form of Rhythm and Blues with accents on the half beats.)

When this music reached their Jamaican counterparts, then residing within New York's inner-city neighbourhoods in the Bronx and Brooklyn, it gave birth to what is now known as Rap, or Hip Hop. Another scene to emerge from its underground existence in New York was the dance 70?™s phenomenon known as Disco. Disco began as far back in the sixties with the Motown sound, but it came in a rapid in the early and mid-seventies when extended versions of the popular songs were played in the city?™s gay clubs.

Rock music has always been the rallying call of rebellious youth, and in 1977 the Anarchic Punk generation produced disenchanted Britons like The Sex Pistols and The Clash.