Trance is a style of electronic dance music that developed in the 1980s. Trance music is generally characterized by a tempo of between 130 and 160 BPM, featuring repeating melodic
synthesizerphrases, and a musical form that builds up and down throughout a track. It often features crescendos and breakdowns. Sometimes vocals are also utilized. The style is arguably derived from a combination of largely electronic music such as ambient music, techno, and house. The origin of the term is ambiguous with suggestions that the term is derived from the Klaus Schulze album Trancefer or the early trance act Dance 2 Trance though it is likely that both these uses are linked to the perceived ability of a drum beat to induce altered states of consciousness, aka a trance. As this music is almost always played in nightclubs at popular vacation spots and in inner cities, trance can be understood as a form of club music.Origin
The earliest identifiable trance recordings came not from within the trance scene itself, but from the UK acid house movement, and were made by The KLF. The most notable of these were the original 1988 / 1989 versions of "What Time Is Love?" and "3 a.m. Eternal" (the former indeed laying out the entire blueprint for the trance sound - as well as helping to inspire the sounds of hardcore and rave); and the 1988 track "Kylie Said Trance". The KLF labelled these early recordings "Pure Trance"; they were markedly different from the releases and re-releases to huge commercial success around the period of the The White Room album (1991) and are
significantly more minimalist, nightclub-oriented and 'underground' in sound. While the KLF's works are clear examples of Proto-trance, two songs, both from 1990, are widely regarded as being the first "true" trance records. The first, Age of Love's self-titled debut single was released in early 1990 and is seen as creating the basis for the original trance sound to come out of Germany. The second track was Dance 2 Trance's "We Came in Peace", the b-side of their own self-titled debut single.
However, the melodies in trance differed from euro/club house in that although they tended to be emotional and uplifting, they did not "bounce around" in the same way that house did। This early music tended to be characterized by hypnotic and melodic qualities and typically involved repeating rhythmic patterns added over an appropriate length of time as a track progressed.
Trance Production
Trance employs a 4/4 time signature, a tempo of 130 to 160 BPM, and 32 beat phrases, somewhat faster than house music but usually not as fast as Goa Trance or Psychedelic Trance. Early tracks were sometimes slower. A kick drum is placed on every downbeat and a regular open hi-hat is often placed on the upbeat. Some simple extra percussive elements are usually added, and major transitions, builds or climaxes are often foreshadowed by lengthy 'snare rolls' - a quick succession of equally spaced snare drum hits that builds in volume towards the end of a measure or phrase.
Synthesizers form the central elements of most trance tracks, with simple sawtooth-based 
sounds used both for short pizzicato elements and for long, sweeping string sounds. A technique called "gating" is often employed in creating these lead sounds (turning the volume up and down rapidly in rhythm with the piece to create a stuttered, chopped sound). Rapid arpeggios and minor scales are common features. Trance tracks often use one central "hook" melody which runs through almost the entire song, repeating at intervals anywhere between 2 beats and several bars.
While many trance tracks contain no vocals at all, other tracks rely heavily on vocals, and thus a sub-genre has developed. The sound and quality of the production relies to a large degree upon the technology available. Vintage analog equipment still holds a place in the hearts of many producers and enthusiasts, with names such as Moog, Roland and Oberheim staples in the trance sound palette. However, the mainstream availability of digital technology has allowed a whole new group of producers to emerge due to the fact that while top shelf digital (or analog modeling) synthesizers cost thousands of US dollars, high demand and a small supply of clean vintage analog synthesizers causes them to be extremely expensive.
Trance records are often heavily loaded with reverb and delay effects on the synthesizer sounds, vocals and often parts of the percussion section. This provides the tracks with the sense of vast space that trance producers tend to look for in order to achieve the genre's epic quality. Flangers, phasers and other effects are also commonly used at extreme settings - in trance there is no need for sounds to resemble any real-world instrument, and so producers have free rein.
source: wikipedia
Further Info
trance.net-- Reviews n Discussions
www.unsignedbandweb.com--Music chart listings
