Tonic
First scale degree
Home
Supertonic
2nd scale degree
Strong pull down to tonic
Mediant
3rd scale degree
Falls down to tonic in most cases
Subdominant
4th scale degree
Can either go down or up to tonic, or go down to the mediant, or to the dominant
Dominant
5th scale degree
Strong pull up or down to tonic
Submediant
6th scale degree
Wants to go up to tonic but doesn’t have a strong pull
Leading tone
7th scale degree
Strong pull up to tonic