Laus Deo! The Worcester collection of sacred harmony : In three parts. Containing, I. An introduction to the grounds of musick: or, Rules for learners. II. A large number of celebrated psalm and hymn tunes, from the most approved ancient and modern authors; together with several new ones, never before published: the whole suited to all metres, usually sung in churches. III. Select anthems, fughes, and favourites pieces of music, with an additional number of psalm and hymn tunes. : The whole compiled for the use of schools, and singing societies. And recommended by many approved teachers of psalmody. : [One line from Psalms].