House music takes its name from Chicago's Warehouse club where, in the 1980s, DJ Frankie Knuckles manipulated records, lengthening, repeating and emphasising different sections. He also added pre-set percussion patterns to emphasise the solid beats which soon defined house music. House music is characterised by:
Listen to Move Your Body by Marshall Jefferson. Notice the four-on-the-floor bass drum and the piano chord riffs.
Jungle is sometimes used to refer to drum 'n' bass music generally.
Garage uses house loops combined with deep synthesised bass lines. The tempo is usually around 120 bpm.
Trance is an offshoot of techno but with more emphasis on harmony and with much use of synthesisers. The tempo is usually around 120-150 bpm.
Ambient music is played in 'chill-out' rooms where clubbers go to relax. It is:
To explore how some techniques have been developed by those working with computers, rather than decks take a look at composer Priti Paintal describing her experience of creating a dance remix of her composition Gangotri. The remixer samples some parts of the original piece and adds his own beats and loops. This transforms the track, changing the relaxed feel of the original to a much more uptempo dance piece.