An introduction to the skill of musick : in two books : first, a brief & plain introduction to musick both for singing and for playing on the violl, by J.P. : second, The art of setting or composing of musick in parts by a most familiar and easie rule of counterpoint : formerly published by Dr. Tho. Campion, but now reprinted with large annotations by Mr. Christoph. Sympson, and other additions.