Delightfully clever marketing gimmick from designer Matt Braun, who’s made a beer label printed with a scale showing the relationship between the level of liquid in the bottle and the note that it makes when you blow across the top. Apparently Matt actually brewed a small batch of “Tuned Pale Ale,” and, thanks to the massively positive response his clever label is getting, has plans to brew some more. You can sign up at his website to be notified when it’s available for purchase, or you could try tuning some bottles of your own. Once you’ve figured out the levels for the notes, why not etch the scale into the glass?