What makes these chords sound "Gypsy" isn't just the notes; it's how they are played on the fretboard.
Instead of a standard Dominant 7th, Gypsy Jazz players often use the 9th to add tension and "swing".
To put these chords into context, try these common progressions found in the repertoire: Gypsy Jazz Guitar Chords, History and Techniques
Due to a fire that limited the use of two fingers on his fretting hand, Django Reinhardt innovated by using his thumb to fret bass notes on the low E-string. This technique is still used today to allow for wider stretches and easier navigation.
The standard for major tonalities. It replaces the "happy" sounding Major 7th with a richer, more open sound by adding the 6th and 9th intervals.
A versatile, symmetric chord used for transitions and as a substitute for dominant chords to create a more intense "pull" back to the root. 2. Characteristic Voicings & Techniques
This is the definitive "dark" sound of Gypsy Jazz. In this style, we rarely play a plain minor triad or a minor 7th. The added major 6th gives it a haunting, sophisticated quality.
If you only learn four shapes, make them these. They form the backbone of nearly every standard in the genre, from Minor Swing to Nuages .