To finish off the major chord family, there are two more important sounds worth looking at. The first of these is the major add9 chord. Here are some useful voicings.
This one uses a major 7th as well as the major add 9.
Here is another example using major add9 chords.
Finally, we come to the major 6th chord. Here are some common voicings and a swinging four bar groove making use of them.
Here is another example using major add9 chords.