A work prepared by two or more authors with the intention that each contribution will merge into one inseparable whole. If one songwriter writes all of the music to a joint work and another songwriter writes all of the lyrics to the joint work, each songwriter will own 50% of both the music and lyrics.

Psychedelic Trance Music
Electronic music became popular as a result of advances in technology (particularly the development of Musical Instrument Digital Interface, or MIDI), and has since blossomed into a bewildering variety of genres including house, techno, trance, breakbeat, hardcore, and ambient.