House music is a genre of electronic dance music that originated in Chicago in the early 1980s.
It was initially popularized circa 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...
Trance is a genre of electronic dance music that developed in the 1990s in Germany.
It is characterized by a tempo of between 125 to mid 160 beats per minute,
repeating melodic phrases, and a musical form that builds up and down throughout a track.
Trance is a genre on its own, but also will include other styles of electronic music
such as techno, house, pop, chill-out, classical music, and film music...
In sound recording and reproduction, audio mixing or mixdown is the process by which multiple recorded
sounds are combined into one or more channels, for instance 2-channel stereo. In the process,
the source signals' level, frequency content, dynamics, and panoramic position are manipulated and
effects such as reverb may be added. This practical, aesthetic,
or otherwise creative treatment is done in order to produce a mix that is more appealing to listeners