The minor 7th chord (mi7) includes the root, minor 3rd and perfect 5th of the minor triad and adds a minor 7th interval. Example: the D mi7 chord symbol specifies a chord whose root is D which uses notes drawn from the F (minor 3rd), A (perfect 5th) and C (minor 7th) pitch classes. Listen to four different voicings of the Cmi7 chord.