Music Theory
How music is built: notes, intervals, scales, chords, keys, and rhythm, and why any of it sounds the way it does.
Notes and pitch
Where pitch comes from, why the octave sounds like the same note again, and how twelve semitones divide it.
Intervals
The distance between two notes, why some pairs sound sweet and others tense, and the simple ratios behind it.
Scales
Choosing seven notes from twelve, the pattern that makes the major scale, and why minor sounds different.
Chords
Stacking thirds into triads, the four basic qualities, and how sevenths add colour and push a progression forward.
Keys
How a piece commits to a scale, what key signatures record, and the circle of fifths that maps them all.
Rhythm
Beat, tempo, and metre, how note values divide time, and why syncopation makes music move.