Below is an "A Major Scale" written in TAB, [Bold] is the root note.

|-------------------------------------------9-10-12-
|---------------------------------9-[10]-12---------
|----------------------------9-11-------------------
|--------------------9-11-12------------------------
|----------9-11-[12]--------------------------------
|--9-10-12------------------------------------------

-10-9----------------------------------------------------------|
------12-[10]-9------------------------------------------------|
----------------11-9-------------------------------------------|
---------------------12-11-9-----------------------------------|
-----------------------------[12]-11-9---------------9-11-[12]-|
---------------------------------------12-10-9-10-12-----------|

The audio is in the key of an "A Major Scale" starting from the 9th fret. Even though this scale is starting from the 6th string 9th fret, this is NOT the root note. The root not is found on the 5th string 12th fret (black note on the scale pattern). A normal scale will start and finish on the root note, anything before or after those note are still in the scale but only there to fill in the gaps.