Metallica’s James Hetfield uses a nylon-string guitar in songs like The Unforgiven and Battery. Don’t worry about the chord name in bar 2 – you just slide the open C major shape up two frets.

Example 3. C9 When we extend a chord beyond the 7th, we start adding the names/numbers from a second octave of the major scale. The 9th (D) is nine notes above the original root when we play a two ...