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→Tonality
In the Major scale, the presence of the perfect 4th and 5th in combination with the leading tone (7th note a half step below the tonic) strongly establishes the tonality of the scale. Melodies that are derived from this scale find the strongest resolution and finality by moving from the leading tone to the tonic note. Scales that do not have a leading tone can still find resolution to the tonic in other ways; however, it is simply not as strong as the major scale's resolution.
Harmony can also establish tonality through chord progressions. In this context, chords tend to have a '''harmonic function'''. They can reinforce or represent the tonic note (called '''''tonic'' function'''), strongly seek resolution to a tonic ('''''dominant'' function'''), or can transition from tonic to dominant ('''''pre-dominant'' function'''). These will be covered a few lessons down the road; however, they are mentioned now to more fully understand tonality.
=== True Analysis ===