When DJing, phrasing refers to the timing of a DJ's mixes with respect to song structure. Song transitions are lined up to prevent any of the main melodic or rhythmic elements of either song from clashing inappropriately. This smooths the transition between songs, allowing the mix to appear as more of a cohesive whole than as two separate songs. Audio mixing is used in sound recording, audio editing and sound systems to balance the relative volume and frequency content of a number of sound sources. ... }} Wiktionary has a definition of: Melody In music, a melody is a series of linear events or a succession, not a simultaneity as in a chord. ... Rhythm (Greek ρυθμός = tempo) is the variation of the duration of sounds or other events over time. ...