Thank you Gary- I'm following you for the most part except when you say " hold down the A/B and ON buttons until the Harmony M's 3 LED lights begin to flash"

The A/B buttons are on the screen panel, right? Which "ON" button are you refering to? The one on the left side of the keyboard that turns the keyboard on and off? (The power button)
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It not the keyboard, it's the keyboardist.

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