Date of publication supplied by Evans. Another issue (not in Evans or Bristol) has imprint: Boston: Printed and sold by Benjamin Mecom at the new printing-office near the Town-House, 1760.
Printed in two columns.
T.p.: p.  (1st group); "Thoughts on poetry and musick: by Dr. Watts."--p.  (1st group); "A recommendatory preface": p. i-iii; chart of musical characters: p. [iv]; text: p. 1-25; blank:  leaf; music: leaves of plates 1-20; blank: 2 leaves.
Library's copy has the final two leaves of the volume as published numbered "21"-"22" by hand, followed by additional pages in manuscript numbered 23-60 and containing 20 p. of music, then 20 with financial accounts dated 1783-1793.
From the library of Ernest Schelling.
Watts, Isaac, 1674-1748. Thoughts on poetry and musick.
Schelling, Ernest, 1876-1939, former owner
Mecom, Benjamin, printer.
Johnston, Thomas, bookseller.