Columbia subject headings:
Bible. Psalms--Liturgical use.
Byzantine chants--History and criticism.
Church music--Orthodox Eastern Church.
Gregorian chants.
Music, Byzantine--History and criticism.
Psalms (Music)--119th Psalm.
Harvard subject headings:
Bible. Psalms--Liturgical use.
Byzantine chants--History and criticism.
Church music--Orthodox Eastern Church
Church music--Orthodox Eastern Church--History and criticism.
Gregorian chants--History and criticism.
Music, Byzantine--History and criticism.
Psalms (Music)--119th Psalm.
Princeton subject headings:
Church music--Orthodox Eastern Church.
Gregorian chants--History and criticism.
Music, Byzantine--History and criticism.