A good anecdote from my experience is I wanted to learn a guitar arrangement of the theme from The Mandalorian a year or so ago. It was way above my skill level at the time. For a month that was the only thing that I practiced, until I finally had it down.

This piece used an alternate tuning, right-hand tapping, harmonics, and some bizarre chord shapes. But now I have some additional techniques under my belt that I can apply to other pieces. And I can brush up on The Mandalorian theme whenever I want. It's a cool piece.