Here are some useful movable sixth add9 chord shapes. As chords become more complex and contain more notes and alterations, they can be harder to relate to other chords, so from here on, all movable shapes will be shown in the first four frets.
This makes it easier to compare chord types as they will all be in the same position on the fretboard. As mentioned previously, it is essential to transpose all chords to every key once you have memorized the fingering and position of the root note. If you find a shape difficult to play, move it further up the fretboard where there is less string tension until your fingers are comfortable with the shape.
Here is a progression featuring the use of major 6 add9 chords.
A minor sixth add9 chord is created by adding a 9th degree to any minor 6th chord. For example, a Cm6/9 chord contains the notes C, Eb, G, A and D (1, b3, 5, 6 and 9). The following diagrams show some common open minor sixth add9 chord shapes.