To play a Cmaj7 chord we simply add the seventh note of the scale (B) to a C chord (C E G). Different key signatures have different notes, but the formula is always the same. 3. C7 (Image credit: ...

A polychord contains two complete triads played together. This isn’t always easy on the guitar, but the Em/maj9 (E minor and B major combined) in Example 5 is a great example.

There are three different notes in a major chord but the guitar allows you to repeat certain notes in different registers. The C shape used here repeats the C and E notes. 2. Building a minor chord on ...