I've been playing guitar for a while, but I've just recently started to learn more about music in general. Now that I'm paying more attention to scales and notes and such I realized that if not for that half step flatting of the first and second strings (B and high E) the guitar tuning would contain all the notes of the C Major scale except B. (EADGCF) Mere coincidence? I think not.
I know I've heard stories about why the second string is tuned a half step flat, but I can't remember them. Does anyone here know why the guitar is usually tuned this way? (I know there are alternate tunings, I'm just curious about this one.)