To set up this Skill, you’ll need to go into the Alexa app on your phone and tap on the sidebar menu button in the top-left corner of the screen.
Tap on “Skills”.
In the search box at the top, type in “guitar”.
Once it’s enabled and ready to go, you’ll see “Disable” instead of “Enable”.
Alexa will then play each string four times and move onto the next string. It goes kind of quickly, so your tuning adjustment skills will need to be top notch.
If your guitar is severely out of tune, I’d recommend just using a proper tuner, or ask Alexa to tune your guitar again, making finer and finer adjustments with each go-through until your guitar is fully tuned.