Electronic music is a loose term for music created using electronic equipment. Any sound produced by the means of an electrical signal may reasonably be called electronic. As a category of criticism and marketing, however, electronic music refers to music produced largely by electronic components, such as synthesizers, samplers, computers, and drum machines. Theoretically, the music could include any of an array of other "instruments".
Electronic music, especially in the late 1990s fractured into many genres, styles and sub-styles. Although there are no hard and fast boundaries, broadly speaking we can identify styles by feeling and by beat, styles that are primarily intended for dance such as techno, house, trance, and jungle and styles that are intended more as experimental styles or for home listening such as ambient, VGM, and trip-hop.