A Dorian mode is a minor scale sound with a major 6 which gives it its strong characteristic major IV chord in a minor key. It is the brightest sounding of the minor modes. It is made up of Tone, Semitone, Tone, Tone, Tone, Semitone, Tone. The modes are named after Greek provinces and each exhibit a specific “mood”. The Dorian mode is used extensively in all styles of music with few exceptions.