What is wrong with this file?

[Matt Johnson]

With this file, I get parse errors and errors which state that I have to
be in lyrics mode.  What is wrong with this file?

-- 
******************************************************************************
Matt Johnson
[EMAIL PROTECTED]
http://www.umr.edu/~matt

University of Missouri - Rolla
Computer Science Department
1870 Miner Circle
Rolla, MO 65409-0360
(573) 341-4491

"C makes it easy to shoot yourself in the foot; C++ makes it harder, but
when 
you do, it blows away your whole leg" 
     - Bjarne Stroustrup 
******************************************************************************
\header {
        title="Title";
}
\include "paper16.ly"

global = \notes {
   \time 3/4;
   \key f;
}


soprano = \notes {
r4 r4 a'4 a'4 f'4 a'4 g'4 e'4 g'4 f'2 f'4 f'4 d'4 f'4 f'4 c'4 f'4 e'2 g'4 g'4 e'4 g'4 
f'4 a'4 c''4 c''4 g'4 bs'4 a'4 c''4 d''4 c''4 a'4 bs'4 a'4 f'4 g'4 f'2 f'2 }


alto = \notes {
r4 r4 c'4 c'4 c'4 c'4 c'4 c'4 c'4 c'2 c'4 c'4 bs4 c'4 c'4 a4 c'4 c'2 c'4 c'4 c'4 c'4 
c'4 c'4 f'4 f'4 e'4 c'4 f'4 f'4 f'4 f'4 f'4 c'4 f'4 c'4 e'4 c'2 c'2 }


tenor = \notes {
r4 r4 f4 f4 a4 f4 e4 g4 e4 a2 a4 a4 f4 a4 a4 f4 a4 g2 e4 e4 g4 e4 a4 f4 a4 a4 c'4 c'4 
c'4 a4 bs4 a4 c'4 c'4 c'4 a4 c'4 a2 a2 }


bass = \notes {
r4 r4 f,4 f,4 f,4 f,4 c4 c4 c4 f,2 f,4 f,4 bs,4 f4 f4 f4 f4 c2 c4 c4 c4 c4 f,4 f,4 f,4 
f,4 c4 e4 f4 f4 bs4 f4 f4 e4 f4 f4 c4 f2 f2 }

\score{
   \context GrandStaff \notes <
      \context Staff = upper <
         \global
         \clef treble;
         \context Voice = one {
            \stemup
            \soprano
         }
         \context Voice = two {
            \stemdown
            \alto
         }
      >
      \context Staff = lower <
         \global
         \clef bass ;
         \context Voice = three {
            \stemup
            \tenor
         }
         \context Voice = four {
            \stemdown
            \bass
         }
      >
   >
   \midi { }
   \paper { linewidth = 10.0\cm; }

}