|A Dominant 7 chord intervals and notes|
|Intervals||1 - 3 - 5 - b7|
|Notes in A 7||A - C# (Db) - E - G|
7th chords have a minor 7th added to the base major chord, possible to play with an omitted 5th degree note. 7th chords are used very often in blues music.
A Dominant 7 Chord Charts, Fingering, Voicings
Here are 6 voicings of the A7 guitar chord, with a chord chart to each voicings' fingering.