alt Hacker NewsAn app on glasses would also not be a great way to learn. There’s a reason we don’t color code piano keys or right the names of the notes on them.
> the app is much cheaper and should work with any real instrument.
Maybe if your instrument has keys or frets. Even if it was a good way to learn, it wouldn’t do much good for a trumpet.
> There’s a reason we don’t color code piano keys or write the names of the notes on them.
When's the last time you learned to play piano? Yes we do. We take off those training wheels at some point but when learning to play for the first time, especially as a child, tools to help learning like the aforementioned do get used.