Yes. I am thinking about rock, jazz, and fingerstyle playing. They're hardly edge cases and haven't been for decades. They're so popular and modern enough to prove the original point.
With regards to tuning, fingerstyle will often feature an arbitrary tuning unique to only a handful of songs. Timbre absolutely matters because you're playing multiple parts on one fretboard simultaneously.
Here's an example of all three genres in one performance! Kent Nishimura covering Steely Dan's "Peg" in fingerstyle. He does have a book available. It combines ordinary sheet music with tablature.