When rock began during the 1950’s it was considered anti traditional and antiauthoritarian. Rock music was not appreciated by parents, educators and basically everyone who was in a position of authority. Rock is generally vocal melody accompanied by bass guitar, electric guitar, drums and often key board instruments like organs, pianos and synthesizers. In the 70’s rock was ruled by pink Floyd, Led Zeppelin and Deep Purple. 70’s also saw punk rock bands like The Sex Pistols. Kurt Cobain and Nirvana guided rock music through a grungy phase and at the present day there are NU metal bands like Limp Biskit and Linkin Park which are ruling the charts.

House was born by dance club Dj’s in Chicago, USA during the mid 80’s. House music is a form of electronic dance music and its beat is produced by a drum machine or electronically by a sampler. Being influenced by the soul and funk music which was very popular in the 70’s, house music is a style of disco music with heavy beats and in its early days it was very popular in all the underground parties.

Ambient music was originated by Brian Eno in the mid 70’s. Ambient music refers to environmental music which is soothing to the ear. This form of music is influenced by different styles like jazz, New Age, Electronic or just noise for that matter. Enigma is very popular when it comes to ambient music

Music of any genre from the past can be classified as retro.