Just 1 flat opens WORLDS of emotion (magic pill)

If only we could take a pill and magically have the musical powers of the universe open to us like a vision from heaven. Sometimes we shoot ourselves in the foot. And I've got a little magical pill for you today that can solve this. At least, it as helped me many times. Better still, it's just ONE little tweak. Allow me to elaborate. Sometimes you've just gotta stop overthinking when it comes to picking your chords. Yes, harmonic progression charts... ...standard chord progressions......