Welcome to the Music Theory page.
An overview of the chapters can be found in the Table of Contents.
Half and whole steps. Second, third, fourth and fifth. Major and minor second. The major scale. C and G major.
Sixth, seventh, octave. Chords, triads. Root position, inversion. Degrees, dominant seventh. D major.
Major and minor third. Perfect fifth. Major and minor triads. The minor scale. F major, A and D minor.
Perfect fourth and octave. Major and minor sixth. Major and minor seventh. First and second inversion. Bb major, E and G minor.
Inversion of intervals. Seventh chords. Inversions of seventh chords. The second degree (II). A and Eb major, B and C minor.
Augmented and diminished. Five types of intervals. Diminished and augmented triad. The sixth degree (VI). E and Ab major, F# and C# minor.
Nonharmonic tones. Triads and scale degrees. The third degree(III). The seventh degree (VII). B and Db major, F and G# minor.
Secondary dominant chord. Augmented sixth chords. Seventh chords and scale degrees. The circle of fifths. F# and Gb major, Bb Minor.