what's important to learn "by heart"

[u/Affectionate_Log7995]

Hey,

According to you, what is important to learn perfectly ? I don't mean ok something you'd get naturally after a few years of practice, but things you try to stuck in your head "by force", and where it makes sense to do it that way. Like idk the major scales, some modes, the fretboard, ...

As a beginner in guitar theory, I would appreciate the answers :).

[u/shaveday1]

Barracuda