Scales are ordered sequences of notes. Major scale: W-W-H-W-W-W-H (whole/half steps). Minor scales: natural, harmonic, melodic. Foundation for melody and harmony.
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Pro Tips
12 major scales (one per note).
Relative minor: 6th degree of major scale.
Key signature shows scale accidentals.
Modes: Ionian, Dorian, Phrygian, etc.
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Fun Facts
"C major: no sharps or flats."
"Circle of fifths organizes all 12 keys."
"Pentatonic: 5-note scale (common in blues/rock)."
