Comment by jofer

I also learned from that book + tape about 30 years ago. I also have to strongly agree with this. It's quite different from learning stringed instruments. I'm sure it has a lot in common with some brass instruments, but either way, seeing doesn't help. Hearing and feeling is everything. That also makes it easier than most to learn via cassette tape! :)

The app seems neat, but focused on precision in bending. Precision in bends doesn't matter a ton for most styles. It's more about feel. Build and resolve tension. Don't worry too much about hitting things exactly. That advice will eventually fail you if you go into styles that need a more complete scale, but for blues/rock/country, it's much more about intuition than precision. The best way to learn is to play along with a lot of things and build "feel" instead of trying to precisely hit notes. (though you do need to hit a clean note to start bending)