What is a French 6th chord?
The French sixth (Fr+6 or Fr 4. 3) is similar to the Italian, but with an additional tone, . The notes of the French sixth chord are all contained within the same whole tone scale, lending a sonority common to French music in the 19th century (especially associated with Impressionist music).
What is a French sixth?
: an augmented sixth chord including a major third and an augmented fourth above the lowest note (such as A-flat–C–D–F-sharp) — compare german sixth , italian sixth — see sixth chord.
How do you make an augmented 6th?
The augmented sixth interval is built from the low sixth scale degree and the raised fourth scale degree. For example, in the key of C, that would be the notes A flat and F#.