The diagrams below show all of the Major seventh chords. Use notes 1 - 3 - 5 - 7 in a particular key to create the chords (as opposed to dominant 7th chords, which use 1 - 3- 5- b7). For an explanation of the figures, go to the notation file. To understand how the chords are derived, go to the tutorial on keys. Table 3 is a quick summary of how chords are formed, and Table 2 contains all the notes in all of the (major) keys. The AMaj7 and BMaj7 forms can be moved along the guitar's neck. That is explained further in the Bar Chords section.