Notes are vibrations. Your Sun sets the root — the foundation frequency upon which your entire harmonic identity rests.
Seven planets create seven notes — a complete scale. A scale is a family of notes arranged by pitch. Your Birth Scale is the tonal language the cosmos chose for you. Within that scale lives your Birth Chord — built from the 1st, 3rd, and 5th notes — which defines whether your harmonic core is major, minor, diminished, or augmented.
The intervals between your planets shape your scale's character. An interval is the distance between two notes, measured in semitones — the smallest step in Western music.
Minor 2nd1 semitone — tension, urgency, the Phrygian signature
Major 2nd2 semitones — movement, the most common step
Minor 3rd3 semitones — melancholy, introspective depth
Major 3rd4 semitones — brightness, open joy
Perfect 4th5 semitones — hymn-like, grounded
Tritone6 semitones — the devil's interval, transformation
Perfect 5th7 semitones — power, stability, resonance
Minor 7th10 semitones — soulful, unresolved tension
Major 7th11 semitones — dreamy, almost resolved
Some intervals feel consonant — stable, resolved, at rest. The perfect fifth is the most ancient harmony, found in every musical tradition on Earth. Others feel dissonant — restless, searching, pulling toward resolution. Neither is better. Consonance is the exhale; dissonance is the inhale.
Your Birth Scale is the tonal universe the cosmos composed when you arrived. Your Birth Chord is its beating heart.