Example image of eyePlorer eyePlorer map for 'Plainsong': Catholic Church Liturgy Orthodox Church Anglicanism Texture (music) Cathedral Resonant room modes Gregorian chant Pope Gregory I Pope Gregory II Italy Musical notation Neume Organum Polyphony Solesmes Abbey Monasticism Second Vatican Council Pope Benedict XVI Summorum Pontificum George B. Chambers Gustav Holst Ambrosian chant Mozarabic chant Ave Maris Stella Beneventan chant Celtic chant Clausula Gallican chant Hypolocrian mode James McKinnon Nóirín Ní Riain Old Roman chant Paraphrase mass Schola cantorum (papal choir) The Making of Music Ut queant laxis Anglican chant Discant Ekphonetic notation Euouae Gelineau psalmody In Nomine Juan Bautista Sancho Rhythmic mode Tenuto Notes inégales Plainsong (novel) Richard Loqueville Totentanz (Liszt)