Thursday Morning Riddle

I’m the window that’s lifted; the left-unlocked door;
I’m accessible source code; a functioning store;
I’m the mic that lets anyone take to the floor;
And when one band’s in concert, to play there before.

Who am I?

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

2 Responses to “Thursday Morning Riddle”

  1. Asher Says:


  2. Bill Says:

    OPEN is correct. Way to go, Asher!

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