C Dorian scale on the guitar fretboard

The C Dorian scale is made of C (the root), D (major second), Eb (minor third), F (perfect fourth), G (perfect fifth), A (major sixth) and Bb (minor seventh). The fretboard shows every one of them across the neck in standard tuning (E A D G B E), and plays them back so you can hear the scale.

The Dorian mode is a minor scale with a raised sixth, the second mode of the major scale. It uses the same notes as a major scale a whole step below, so the neck shows one shape under two names. It sits between the natural minor and the major scale in colour.