There may not be such an animal as G2, but I have do have an extraordinary amount of sheet music that has "2" chords all over the place. So publishers are definitely using it.

As far as BIAB is concerned, it is simply a shorthand for G(add9). If you want a G(add9), you have to enter it as a G2. Of course, that's different from Gsus2, because the G2 can have the 3rd in it (G A B D), whereas the Gsus2 would not have the 3rd ( G A D).


John

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