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7th Chords

Dominant Seventh (7th) chords consist of a Root, a major 3rd, a perfect 5th, a minor 7th note of the major scale built on the root.

Stradella standard bass system allows you to play 7th chords on the accordion by pushing just one button on the 5th column.

Dominant 7th chord buttons column on the Stradella bass system

Dominant 7th chord buttons column on the Stradella bass system

7th chords on Accordion in all keys: