Such irregular meters are also found throughout Greece, where they are sometimes identified as originating in neighboring countries. For example, in Epirus, a district bordering Albania, there is a style of singing in imitation of the sound of Byzantine bells, that employs microtonal intervals and is described by the singers themselves as Albanian or pastoral Vlach. The rhythms vary, but sometimes is in bars of seven beats, particularly in the area around Mount Parnassus. The rhythm of the kalamatianos from the same region, however, is regarded as purely Greek.