This is the sound of a traditional jazz chord progression: But Miles Davis designed the music on "Kind of Blue" around a modal form.

VOA: special.2010.10.18

"Usually it was a dystopian message in the form of some kind of warning;

VOA: standard.2009.12.19

Many consider it a mystical form of Islam. "It's kind of the interior illumination of the practices of Islam, which bring out the best in it.

VOA: standard.2010.05.21