For musicians in the know, describing a song as “I V vi IV in F” is WAY more helpful than saying “F C Dm Bb”. Often times, when my bassist and I start talking that way, our band mates just sit there looking confused, curious as to how what we said was sufficient enough for us to teach each other a song in just a few seconds.
If you’ve ever been in that situation, and want to be in the know, then this video is for you!
- Major: I ii iii IV V vi vii° -or- I IIm IIIm IV V VIm VII°
- Natural minor: i ii° III iv v VI VII -or- Im II° ♭III IVm V ♭VI ♭VII
- Harmonic minor: i ii° III+ iv V VI vii° -or- Im II° ♭III+ IVm V ♭VI VII°