I don't have any of my beginniers books from when I played the piano a couple of lifetimes ago, but I can suggest that you buy a "theory" book to learn your cords. You'll learn the keys on your first lesson, Hon. There's only eight of them that repeat. The theory book will tell you where they appear on the page.
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Psalm 119:105 Thy word is a lamp unto my feet, and a light unto my path.