diff --git a/songbook_core/build.py b/songbook_core/build.py
index cbef29a6..264d1e16 100755
--- a/songbook_core/build.py
+++ b/songbook_core/build.py
@@ -57,24 +57,15 @@ class Songbook(object):
                 'lang': 'english',
                 'sort': [u"by", u"album", u"@title"],
                 'content': None,
+                'titleprefixwords': [],
                 }
         self._parse_raw(raw_songbook)
 
-    @staticmethod
-    def _set_songs_default(config):
-        """Set the default values for the Song() class.
 
-        Argument:
-            - config : a dictionary containing the configuration
 
-        TODO Move this function elsewhere
-        """
-        return
-        Song.sort = config['sort']
-        if 'titleprefixwords' in config:
-            Song.prefixes = config['titleprefixwords']
-        else:
-            Song.prefixes = []
+
+
+    def __TODO(self):
         Song.authwords['after'] = [
                 re.compile(r"^.*%s\b(.*)" % after)
                 for after
@@ -142,7 +133,6 @@ class Songbook(object):
         context['content'] = self.contentlist
         context['filename'] = output.name[:-4]
 
-        self._set_songs_default(context)
         renderer.render_tex(output, context)
 
 
diff --git a/songbook_core/content/song.py b/songbook_core/content/song.py
index b2548933..27aca0e8 100644
--- a/songbook_core/content/song.py
+++ b/songbook_core/content/song.py
@@ -54,7 +54,7 @@ def parse(keyword, config, *arguments):
         for songdir in [os.path.join(d, 'songs') for d in config['datadir']]:
             for filename in glob.iglob(os.path.join(songdir, elem)):
                 LOGGER.debug('Parsing file "{}"…'.format(filename))
-                song = SongRenderer(filename)
+                song = SongRenderer(filename, config)
                 songlist.append(song)
                 config["languages"].update(song.languages)
             if len(songlist) > before:
diff --git a/songbook_core/songs.py b/songbook_core/songs.py
index 5e280413..27e59194 100644
--- a/songbook_core/songs.py
+++ b/songbook_core/songs.py
@@ -16,12 +16,10 @@ class Song(object):
 
     #: Ordre de tri
     sort = []
-    #: Préfixes à ignorer pour le tri par titres
-    prefixes = []
     #: Dictionnaire des options pour le traitement des auteurs
     authwords = {"after": [], "ignore": [], "sep": []}
 
-    def __init__(self, filename):
+    def __init__(self, filename, config):
         # Data extraction from the song with plastex
         data = parsetex(filename)
         self.titles = data['titles']
@@ -29,7 +27,7 @@ class Song(object):
                 locale.strxfrm(
                     unprefixed_title(
                         unidecode(unicode(title, "utf-8")),
-                        self.prefixes
+                        config['titleprefixwords']
                         )
                     )
                 for title