I first learned about the double diminished scale in the 1970s, inspired by pianists like Chick Corea and Herbie Hancock. At that time, I was studying a book by Nicolas Slonimsky called Thesaurus of ...

Just as the augmented chord can be repeated every two or four frets on a guitar because of its note makeup (stacked major 3rds), so the diminished can be repeated every three frets since it is made up ...