Watch the Week 7: Master Structure I online guitar lesson by Les Wise from Fretboard Freedom Fighter
We start off by adding the 9th, an extra note or extension to our Cmaj7(1-3-5-7) - Cmaj9 (1-3-5-7-9). First working through all fingers, across the strings. Next we learn a new way of creating a maj9 sound by substituting an min7th from inside the maj9th structure. Also, don't worry about how to finger the extensions, every finger and string position are clearly displayed on the screen with embedded diagrams.
TIP: Take your time with the extensions. Let's get it right the first time!