Notes on Gregorian Chant::LOVE authentic Gregorian Chant!!! Learned it since 1st grade  beginning in "37!!! Above: Miserere nobis, Agnus Dei qui tolis pecata mundi Agnus Dei Qui tolis pecatamundi,dona nobis Pacem.... Oh I do Midd the REAL Gregorian hant!!! The recordings now are so wrong!!![ like using all voices except 1 with no vibrato, then having ove voice doing a vibrato as others sing W/O.... Vibrato in real GC could never be used as it was considered  a devil's voice if there was any vibrato!!! Also NO harmony at all,,, that was also sacreligious till way later when harmony was limited to 4ths and 5ths