half-diminished, diminished and augmented

part 1: diminished and augmented triad chords – E & A shapes

part 2: half-diminished, diminished 7 and augmented 7 chords


half-diminished vs. diminished

augmented triad and 7th chords

augmented vs. diminished

how to use diminished chords in songwriting

more advanced analysis of diminished chords

how they can be interweaved with an extended I chord and how diminished chord is a rootless dominant 7 b9 chord