The enigmatic scale (Italian: scala enigmatica) is an unusual musical scale, with elements of both major and minor scales, as well as the whole-tone scale. It was originally published in a Milan journal as a musical challenge, with an invitation to harmonize it in some way.
- ^ Peter Fischer (2000). Rock Guitar Secrets, p.162. ISBN 3-927190-62-4.
- ^ Barrie Jones (1999). The Hutchinson Concise Dictionary of Music, p.197. ISBN 1-57958-178-1.
- ^ William Henry Hadow (1905). The Oxford history of music, p.223. Second edition, Vol. 6.