\heading{Anhang C:\quad Darstellung der Syntax in \BNF}
\abschnitt
Anhang C enth"alt die vollst"andige Beschreibung der Syntax in
\BNF. Die Nichtterminalzeichen sind alphabetisch aufgelistet,
um das Aufsuchen bestimmter Nichtterminalsymbole zu erleichtern.
Das Startsymbol $S$ der Grammatik ist \nl{music input}.
\abschnitt


\def\T{|}
$$\align
\nm{accid} ::=& \nm{accidental} \nm{simple note} \T
            \nm{octave} \nm{accidental}
               \nm{simple note} \T\\
              &\nm{accidental} \nm{octave} \nm{simple note}\\
\nm{accidental} ::=& {\bf x} \T {\bf{xx}} \T {\bf{b}} \T {\bf{bb}} \T
          {\bf{n}}\\
\nm{articulation group} ::=&
\bs{\bf stac} \nm{melody} \bs{\bf noaccent}\T
\bs{\bf staccatissimo} \nm{melody} \bs{\bf noaccent}\T\\
& \bs{\bf tenuto} \nm{melody} \bs{\bf noaccent}\\
\nm{barline} ::=& \strich\ \T\ \strich\strich\ \T
\ \gleich\ \T\ \strich\strich\dpkt\ \T
        \ \dpkt\strich\strich\ \T
        \ \dpkt\strich\strich\dpkt
           \\
\nm{begin} ::=& {\hbox{\bf!!}} \T \bs{\bf beginsong}\\
\nm{block} ::=& \nm{melody} \T \nm{two} \T \nm{vocal}\\
\nm{caesura} ::=& {\bf 0p}\\
\nm{change} ::=& \nm{clef} \T \nm{signature} \T \nm{metre} \T \nm{change}
             \nm{change}\\
\nm{chord} ::=& \bs{\bf chord}\lk%
            \nm{several notes}\rk \T \nm{chord} \nm{chord}\\
\nm{clef} ::=& \bs{\bf treble} \T \bs{\bf bass} \T \bs{\bf baritone} \T
         \bs{\bf alto} \T \bs{\bf mezzo} \T \bs{\bf soprano} \T
         \bs{\bf tenor} \\
\nm{digit} ::=& {\bf 0} \T {\bf 1} \T
       {\bf 2} \T {\bf 3} \T {\bf 4} \T {\bf 5} \T {\bf 6} \T {\bf 7}
       \T {\bf 8} \T {\bf 9}\\
\nm{dot} ::=& {\hbox{\bf.}}\\
\nm{duration} ::=& {\bf 1} \T
          {\bf 2} \T {\bf 4} \T {\bf 8} \T {\bf 6} \T {\bf 3} \T {\bf 5}
      \T {\bf 7} \\
\nm{end} ::=& {\hbox{\bf!!}} \T \bs{\bf endsong}\\
\nm{explanation} ::=& \bs{\bf text}\lk\nm{text}\rk \T
          \bs{\bf text}\lk\nm{place} \nm{text}\rk \T\\
           &\nm{recital} \T
         \lk\nm{place} \nm{recital}\rk\\
\nm{group} ::=& \nm{simple nested group} \T
        \nm{mismatched group} \T\\
        &\nm{articulation group} \T \nm{group} \nm{group}
        \\
\nm{heading} ::=& \bs{\bf title}\lk\nm{text}\rk \T
              \bs{\bf poet}\lk\nm{text}\rk \T
                   \bs{\bf composer}\lk\nm{text}\rk\\
\nm{letter} ::=& {\bf a} \T
        {\bf b} \T {\bf c} \T {\bf d} \T {\bf e} \T {\bf f} \T {\bf g}
         \T {\bf h} \T {\bf i} \T {\bf j} \T {\bf k} \T {\bf l}
       \T {\bf m} \T {\bf n} \T {\bf o} \T {\bf p} \T {\bf q} \T {\bf r}
       \T {\bf s} \T {\bf t} \T {\bf u} \T {\bf v} \T {\bf w} \T {\bf x}
         \T {\bf y} \T {\bf z} \T \\
             &{\bf A} \T {\bf B} \T {\bf C} \T {\bf D}
       \T {\bf E} \T {\bf F} \T {\bf G} \T {\bf H} \T {\bf I} \T {\bf J}
       \T {\bf K} \T {\bf L} \T {\bf M} \T {\bf N} \T {\bf O} \T {\bf P}
       \T {\bf Q} \T {\bf R} \T {\bf S} \T {\bf T} \T {\bf U} \T {\bf V}
           \T {\bf W} \T {\bf X} \T {\bf Y} \T {\bf Z}\\
\nm{melody} ::=& \nm{primitives} \T \nm{group} \T \nm{change} \T
      \nm{explanation}\\
\nm{metre} ::=& \bs{\bf meter} \lk\nm{number} \slash \nm{number}\rk \T
              \bs{\bf allabreve}
          \T \bs{\bf hC} \T \bs{\bf dC}\\
\nm{mismatched group} ::=& \bs{\bf group}\lk\nm{primitives}\rk
              \nm{special group} \T\\
              &\bs{\bf group}\lk%
              \nm{chord}\rk \nm{special group}\\
\nm{music input} ::=& \nm{begin} \nm{piece} \nm{end}
\endalign$$
\vfill\eject
$$\align
\nm{nested group} ::=& \nm{primitives} \T \nm{explanation} \T
\nm{change} \T\\
&\nm{simple nested group} \T \nm{articulation group} \T\\
         &\nm{nested group} \nm{nested group}
\\
\nm{note} ::=& \nm{simple note} \T
        \nm{note specification} \nm{simple note}
\\
\nm{note specification} ::=& \nm{octave} \T \nm{accidental} \T
       \nm{duration} \T \nm{punctuation} \T\\
         &\nm{note specification} \nm{note specification}\\
\nm{number} ::=& \nm{digit} \T \nm{digit} \nm{number}\\
\nm{octave} ::=& {\hbox{\bf,}} \T {\hbox{\bf{,,}}} \T
        {\hbox{\bf{,,,}}} \T {\hbox{\bf `}}
         \T {\hbox{\bf{`}{`}}} \T
        {\hbox{\bf{{`}{`}{`}}}} \T {\hbox{\bf{{`}{`}{`}{`}}}}\\
\nm{omission} ::=& \slash\\
\nm{piece} ::=& \nm{several system} \T
        \nm{system} \T \nm{heading} \nm{piece}\\
\nm{place} ::=& \bs{\bf\us}\T
\bs{\bf\us l} \T \bs{\bf\us c} \T \bs{\bf\us r} \T
\bs{\bf\us n} \T \bs{\bf\us v} \T \bs{\hbox{\bf\os\ }} \T
\bs{\hbox{\bf\os\ l}} \T
          \bs{\hbox{\bf\os\ c}} \T \bs{\hbox{\bf\os\ r}} \T
          \bs{\hbox{\bf\os\ n}} \\
\nm{preliminary data} ::=& \nm{voice} \T \nm{clef} \T \nm{signature} \T
          \nm{metre} \T
            \nm{explanation} \T\\
             &\nm{preliminary data} \nm{preliminary data}\\
\nm{primitives} ::=& \nm{note} \T
      \nm{rest} \T \nm{caesura} \T \nm{barline}
       \T \nm{primitives} \nm{primitives}\\
\nm{punctuation} ::=& \nm{dot} \T \nm{dot} \nm{punctuation} \\
\nm{recital} ::=&
\bs{\bf dacapo} \T \bs{\bf dalsegno} \T
\bs{\bf unisono} \T \bs{\bf cantusfirmus} \T
\bs{\bf crescendo} \T\\
& \bs{\bf decrescendo} \T \bs{\bf diminuendo} \T
\bs{\bf forte} \T
\bs{\bf fortissimo} \T\\
& \bs{\bf fortissimoposs} \T \bs{\bf mezzoforte} \T
\bs{\bf mezzopiano} \T
\bs{\bf piano} \T\\
& \bs{\bf pianissimo} \T
\bs{\bf pianissimoposs} \T
\bs{\bf fortepiano} \T
\bs{\bf forzato} \T\\
& \bs{\bf rinforzando} \T \bs{\bf sforzato} \T
\bs{\bf sforz} \T
\bs{\bf decr} \T \bs{\bf rallentando} \T\\
& \bs{\bf ritardando} \T \bs{\bf ritenuto} \T
\bs{\bf tr} \T \bs{\bf staccato} \T
\bs{\bf fine} \T
\bs{\bf tacet} \\
\nm{rest} ::=& \nm{rest specification} {\bf p} \T {\bf{p}} \\
\nm{rest specification} ::=& \nm{duration} \T
         \nm{punctuation} \T \nm{rest specification}
                  \nm{rest specification}\\
\nm{several accid} ::=& \nm{accid} \T \nm{accid} \nm{several accid}\\
\nm{several notes} ::=& \nm{note} \T \nm{note} \nm{several notes}\\
\nm{several system} ::=& \bs{\bf system}
        \lk\nm{system}\rk \T\\
        &\bs{\bf system} \lk\nm{system}\rk
          \nm{several system}
\\
\nm{sign} ::=&
     \bs{\bf C} \T \bs{\bf G} \T \bs{\bf D} \T \bs{\bf A} \T \bs{\bf E}
            \T \bs{\bf H} \T \bs{\bf Fis} \T
             \bs{\bf Cis} \T\\
            &\bs{\bf a} \T \bs{\bf e} \T
          \bs{\bf h} \T \bs{\bf fis} \T
          \bs{\bf cis} \T \bs{\bf gis} \T \bs{\bf dis} \T
          \bs{\bf ais} \T\\
            &\bs{\bf Ces} \T
            \bs{\bf Ges} \T \bs{\bf Des} \T \bs{\bf As} \T
           \bs{\bf Es} \T \bs{\bf B} \T
                \bs{\bf F} \T\\
             &\bs{\bf as} \T \bs{\bf es} \T
         \bs{\bf b} \T \bs{\bf f} \T
         \bs{\bf c} \T \bs{\bf g} \T \bs{\bf d}
\endalign$$
\vfill\eject
$$\align
\nm{signature} ::=& \bs{\bf signature}\lk\nm{several accid}\rk \T
               \nm{sign}\\
\nm{sign number} ::=& \nm{number} {\hbox{\bf-}} \nm{number} \T
       \nm{sign number} {\bf,} \nm{number} {\hbox{\bf-}} \nm{number}
\\
\nm{simple nested group} ::=& \bs{\bf beam}\lk%
           \nm{nested group}\rk \T
                        \bs{\bf slur}\lk\nm{nested group}\rk \T\\
               &\bs{\bf cresc}\lk\nm{nested group}\rk \T
                  \bs{\bf descresc}\lk\nm{nested group}\rk\\
                 &\bs{\bf chord}\lk\nm{several notes}\rk\\
\nm{simple note} ::=& {\bf c} \T {\bf d} \T {\bf e} \T {\bf f}
       \T {\bf g} \T {\bf a} \T {\bf h} \\
\nm{songtext} ::=& \nm{text} \T
              \nm{place}\nm{text} \T
             \nm{omission} \T
            \nm{songtext} \nm{songtext}\\
\nm{special character} ::=&\  {\hbox{\bf,}}\  \T\  {\hbox{\bf;}}\ \T
                   \ {\hbox{\bf.}}\  \T \ {\hbox{\bf!}}\ \T \ \blank\ \T
            \ {\hbox{\bf?}}\ \T\ {\hbox{\bf*}}\ \T\ {\hbox{\bf+}}\ \T
                 \ {\hbox{\bf-}}\ \T \ {\hbox{\bf`}}\ \T
             \  {\hbox{\bf'}}\  \T\ \bs\ \T\ {\hbox{\bf\~\ }}\\
\nm{special group} ::=& \bs{\bf gslur}\lk\nm{sign number}\rk \T
                        \bs{\bf gbeam}\lk\nm{sign number}\rk \T\\
                       &\bs{\bf gcresc}\lk\nm{sign number}\rk \T
                        \bs{\bf gdecresc}\lk\nm{sign number}\rk \T\\
                        &\nm{special group}\nm{special group}\\
\nm{system} ::=& \nm{block} \T \nm{preliminary data} \nm{block}\\
\nm{text} ::=& \nm{word} \T \nm{special character} \T
             \nm{text} \nm{text}\\
\nm{two} ::=& \bs{\bf two}\lk\nm{melody}\rk \lk%
            \nm{melody}\rk\\
\nm{vocal} ::=& \bs{\bf vocal}\lk\nm{melody}\rk \lk%
           \nm{songtext}\rk \T
\bs{\bf vocal}\lk\nm{two}\rk \lk%
           \nm{songtext}\rk\\
\nm{voice} ::=& \bs{\bf voice}\lk\nm{text}\rk\\
\nm{word} ::=& \nm{letter} \T \nm{digit} \T \nm{letter} \nm{word} \T
                \nm{digit} \nm{word}
\endalign$$
\vfill\eject

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