Disco is a genre of music that peaked in popularity in the late 1970s, though it has since enjoyed brief resurgences including the present day. The term is derived from discothèque (French for "library of phonograph records", but subsequently used as proper name for nightclubs in Paris). Its initial audiences were club-goers from the African American, gay, Italian American, Latino, and psychedelic communities in New York City and Philadelphia during the late 1960s and early 1970s. Disco also was a reaction against both the domination of rock music and the stigmatization of dance music by the counterculture during this period. Women embraced disco as well, and the music eventually expanded to several other popular groups of the time.
Pop music (a term that originally derives from an abbreviation of "popular") is a genre of popular music which originated in its modern form in the 1950s, deriving from rock and roll. The terms "popular music" and "pop music" are often used interchangeably, even though the former is a description of music which is popular (and can include any style).
Club/Dance music comes in many different forms, from disco to hip-hop. Though there have been various dance crazes throughout the history of popular music, club/dance music became its own genre in the mid-'70s, as soul mutated into disco and whole clubs were devoted to dancing. In the late '70s, dance clubs played disco, but by the end of the decade, disco was mutating into a number of different genres. All of the genres were collected under the catch-all term "dance," though there were distinct differences between dance-pop, hip-hop, house, and techno, among other subgenres. What tied them all together was their emphasis on rhythm -- in each dance subgenre, the beat remains all-important.
House music is a genre of electronic dance music that originated in Chicago in the early 1980s. It was initially popularized around 1984 in Chicago, but beginning in 1985, it fanned out to other major cities across North and South America, as well as Europe and later Australia.
Electronic dance music (also known as EDM, dance music, club music, or simply dance) is a set of percussive electronic music genres produced primarily for dance-based entertainment environments, such as nightclubs. The music is largely created for use by disc jockeys (DJs) and is produced for use in DJ mixes, in which the DJ uses a synchronized segue, or "mix," to progress from one recording to the next.