Trance is a musical genre of electronic dance music that uprose in the 1990s ; generally characterized by a tempo of between 120 and 145 bpm, short repetitive melodic synthesizer phrases, and a musical form that builds up and breaks down on top of a track. It is a combination of many forms of music such as industrial, techno, and house. It is more melodic than Techno, and usually has harder beats than House. The line of the term is uncertain,