G Shape Explorer

The G Shape is a super cool grip for exploring and there are lots of fun variations to try on your guitar!

View the full lesson at G Shape Explorer | JustinGuitar

So, thank (belated) for the downloads in the chord explorer series. I was trying to make sense of each chord’s notes and how that relates to their name. I get it, except for the difference between add9 and add2. With Gadd9 we have the notes GxDABG. Why wouldn’t this be called Gadd2 because we are adding an A to the triad of GBD? Instead we pull out the 9th note in the scale? Another question that falls into the idea of naming, why G6 instead of Gadd6?

Many thanks for your time…

I think these are mostly down to the presence/absence of the 7th in the chord. These articles may help you understand the various types of chords better: