Thursday Morning Riddle

I indent on the keyboard a five-spaces span;
In a bar or a club, I’m the bill that you ran;
I am notes for guitarists, a fingering plan;
And a cult diet soda; I’ll open the can.

Who am I?

UPDATE: Riddle solved by Asher. See comments for answer.

2 Responses to “Thursday Morning Riddle”

  1. Asher Says:

    Tab

  2. Bill Says:

    TAB is correct. Way to go, Asher!

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