Part 3 of our ongoing series about chords is now available on YouTube.
In this video we talk about Augmented and Diminished chords.
[youtube http://www.youtube.com/watch?v=eOVHzQ9Ggos?hl=en&fs=1]
You can think of Diminished chords as minor chords with a flat-5th.
You can think of Augmented chords as major chords with a sharp-5th.
When adding 7ths to diminished chords, in order to get the correct spelling, the chord must be spelled, from the bottom up with every other letter. For example: a C diminished 7 chord (fully diminished) is C, Eb, Gb, and Bbb (double flat, which is the same as A).
Check the video out for the rest of the story.