Dominant 7th Guitar Chords
7th guitar chords are usually written as 7 chords. Sometimes you will see them written as dom7 which is a shortened form of dominant 7. However, the most commonly used is 7, e.g., G7, A7, B7 etc. Whenever you see a 7 chord, it always refers to a dominant 7th chord... A7, B7, D7, E7 etc.
- Unless stated otherwise, a '7' chord refers to a dominant 7th chord - a major triad plus a minor 7th (flattened 7th)... a root, a major third, a perfect fifth, and a minor 7th.
- The chord formula for a 7 guitar chord (dominant 7th) is 1 - 3 - 5 - ♭ 7.
- The following is an example of how to calculate a C7 chord.
- 7th Guitar Chords consist of the 1st, 3rd, 5th and ♭7th notes of a Major Scale
- 'C' chords, are based on the C major scale which consists of no sharps or flats.
- The scale reads as follows: C - D - E - F - G - A - B - C
- Formula for a 7th chord: 1 - 3 - 5 - ♭7
- Substitute the notes into the formula (1=C, 3=E, 5=G, ♭7=B♭)
- Therefore C7 reads as follows: C - E - G - B♭
The featured practice song for this session is Come Together by the Beatles.