I can’t decide if I like this gadget or if it is ridiculously over the top. This will not help you play better. I’m not even sure it will help you understand alt. tunings better. However, the construction looks solid and it’s actually beautiful, as a trophy to hang on the chimney over the mantelpiece.
I’m not putting down the invention because I might well decide to buy it sometimes.
See for your yourself:
Here’s the company link: Chordstar