Толковый словарь английского языка Oxford English Reference - psalmody

n. 1 the practice or art of singing psalms, hymns, etc., esp. in public worship. 2 a the arrangement of psalms for singing. b the psalms so arranged. Derivatives psalmodic adj. psalmodist n. psalmodize v.intr. (also -ise). Etymology: ME f. LL psalmodia f. Gk psalmoidia singing to a harp (as PSALM, oide song)