The name given by Carl Engel to the ancient musical scale which is easiest described, as that formed by the black keys of the piano. It consists of the 1st, 2nd, 3rd, 5th and 6th degrees of a modern diatonic scale. (Stainer, John; Barrett, W.A.; A Dictionary of Musical Terms; Novello, Ewer and Co., London, pre-1900)
See Also