Choral Technics a Course Integrating Sight Singing Vocal Training Choral Repertory, and Musical Understanding

DJ : Short for dust jacket, a protective and often decorative wrapper, usually made of paper which wraps around the binding of a book.

vg : Very Good condition. can describe a used book that does show some small signs of wear - but no tears - on either binding or paper. Any defects must be noted. (defined by AB Bookman's Weekly)

octavo : A book whose page size is approximately 12 inches by 9 inches. The size is based on a sheet of paper 25 inches by 38 inches, the size of paper traditionally used by book printers, which has been cut into eight pages.