guitar is also difficult because the same note can be played in as many as 5 different places. sometimes its hard to tell which string to actually play it on, since a choice has fingering and possibly picking ramifications later.
How many guitarists (and I'm thinking classical or, perhaps, jazz guitarists) can just sit down and sight-read a piece? I suspect part of the craft is learning a piece, and learning the most efficient fingerings/patterns for the piece.
I've been in guitar orchestras, what we do is annotate our sheet music with optimal finger positions as we work through the piece. Especially for long pieces you can't necessarily keep in your head, this helps with sigh-reading tremendously since the positions are written in the sheet music.
Some sheet music for guitar also has note-level annotations for string number and finger positions, which does the above for the guitarist.
