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 musick, with an additional number of psalm and hymn tunes. The whole compiled for the use of schools, and singing societies. [One line from Psalms].