00674cam a22002052 4500 unk84110941 DLC 20260227112801.0 841115n xx 000 0aeng unk84110941 DLC CarP DLC MT224.C85 C7 Crawford, Thomas J., 1877-1955. The Crawford system of keyboard harmony and transposition; a simple, practical and comprehensive approach with numerous original melodies and basses for practice, [n.p., n.d.] p. cm. Keyboard harmony. Transposition (Music) Keyboard harmony and transposition. 91555 91555