Names and symbols used in harmonic analysis to denote tones of the scale as
roots of chords. The most important are degrees I = tonic (T), IV =
subdominant (S) and V = dominant (D).
- The first scale degree is also known as the tonic
- The second scale degree is also known as the supertonic
- The fourth scale degree is also known as the subdominant
- The fifth scale degree is also known as the dominant
- The sixth scale degree is also known as the submediant
- The seventh scale degree is also known as the subtonic