Heterofono dvoglasno [хетерофоно двогласно]
Group and unison singing in some parts of the Montenegrin littoral and its hinterlands switch into heterophonic second two-part, but only in the cadences of the melo-line or melo-stanza (Grbalj, see singing in a group). The heterophonic second two-part in the cadences also appears in antiphonic singing (Spič, see singing antiphonic). This singing is connected to rural districts in the hinterland. These songs are performed in the context of ritual-customary practices in rural parts of the Montenegrin littoral and its hinterlands (for example, at wedding ceremonies, occasionally at the celebration of the family patron saint, at spinning-bees, etc.). These songs are based on a tone row, which is mostly non-tempered, and the harmony second that appears in their two-part singing is considered consonant. These songs begin with a soloist who “raises” [диже] the song and who is then allowed to embellish it with the usual melodic ornaments (single and double appoggiaturas, after-beats, vibrato, etc.). In a way, it is the soloist who introduces the other singers into the song, and they then take over the song, which by that time has been sung halfway through, and also embellish it, in this case by changing to a perceptibly slower tempo as opposed to the solo beginning. During the singing by the group, in the cadences there is a transition from singing in unison to heterophonic second singing.