Diatonic scales can start on first note {fundamental, music} {tonic, tone} {key, diatonic}.
Major diatonic scales have tone {dominant tone}| a fifth above tonic, in frequency ratio 3:2.
Major diatonic scales have tone {subdominant tone}| a fourth above tonic, in frequency ratio 4:3.
Major diatonic scales have tone {leading tone}| seventh above tonic, in frequency ratio 9:5 or 15:8.
2-Music-Theory-Scale-Scales-Diatonic
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Date Modified: 2022.0225