The key of C Dorian has a key signature of 2 flats (B♭, and E♭). The C Dorian scale has the notes C, D, E♭, F, G, A, and B♭. It is the 4th most popular key among Dorian keys and the 33rd most popular among all keys. The C Dorian scale is similar to the C Minor scale except that its 6th note is a half step higher (A). Chord progressions in Dorian have a characteristic sound due to the major quality of the chord built on the 4th scale degree. For chord progressions, statistics, and tendencies, view this key in Hooktheory Trends