In music, monophony is the simplest of textures, consisting of meloy without accompanying harmony. This may be realized as just one note at a time, or with the same note duplicated at the octave (such as often when men and women sing together). If the entire melody is sung by two voices or a choir with an interval between the notes or in unison, it is also said to be in monophony. Music in which all the notes sung are in unison is called monophonic. Musical texture is determined in song and music by varying different components. Songs intersperse monophony, heterophony, polyphony, homophony, or monody elements throughout the melody to create atmosphere and style. Monophony may also have a complex rhythmic element, as when percussion accompanies a melody in some types of Chinese or Indian music.