Clip: Major 7 chords around circle – recite names:

These are basic root position 7th chords from 6th and 5th string roots.

Every chord is voiced, low to high: 

Root, 5th, 7th, 3rd.

There are 5 types:

Major = root/5th/7th/3rd

Dominant = b7
(root/5/b7/3)

Minor = b3
(root/5/b7/b3)

Half Diminished = b5
(root/b5/b7/b3)

Full-Diminished = bb7
(root/b5/bb7/b3)

Each type should be drilled around the circle while reciting the names.