diff --git a/songbook_core/build.py b/songbook_core/build.py
index 31f94444..cbef29a6 100755
--- a/songbook_core/build.py
+++ b/songbook_core/build.py
@@ -14,7 +14,7 @@ from songbook_core import __DATADIR__
 from songbook_core import content
 from songbook_core import errors
 from songbook_core.index import process_sxd
-from songbook_core.songs import Song, SongbookContent
+from songbook_core.songs import Song
 from songbook_core.templates import TexRenderer
 
 LOGGER = logging.getLogger(__name__)
@@ -69,6 +69,7 @@ class Songbook(object):
 
         TODO Move this function elsewhere
         """
+        return
         Song.sort = config['sort']
         if 'titleprefixwords' in config:
             Song.prefixes = config['titleprefixwords']
diff --git a/songbook_core/content/song.py b/songbook_core/content/song.py
index 447d20b3..fc371eaf 100644
--- a/songbook_core/content/song.py
+++ b/songbook_core/content/song.py
@@ -3,17 +3,18 @@
 
 import glob
 import jinja2
+import logging
 import os
 
 from songbook_core.content import Content
 from songbook_core.files import recursive_find
+from songbook_core.songs import Song
 
-class Song(Content):
-    def __init__(self, filename):
-        self.filename = filename
+LOGGER = logging.getLogger(__name__)
 
+class SongRenderer(Content, Song):
     def begin_new_block(self, previous, __context):
-        return not isinstance(previous, Song)
+        return not isinstance(previous, SongRenderer)
 
     def begin_block(self, context):
         indexes = context.resolve("indexes")
@@ -24,8 +25,13 @@ class Song(Content):
     def end_block(self, __context):
         return r'\end{songs}'
 
-    def render(self, __context):
-        return r'\input{{{}}}'.format(self.filename)
+    def render(self, context):
+        outdir = os.path.dirname(context['filename'])
+        if os.path.abspath(self.path).startswith(os.path.abspath(outdir)):
+            path = os.path.relpath(self.path, outdir)
+        else:
+            path = os.path.abspath(self.path)
+        return r'\input{{{}}}'.format(path)
 
 def parse(keyword, config, *arguments):
     songlist = []
@@ -45,7 +51,8 @@ def parse(keyword, config, *arguments):
         before = len(songlist)
         for songdir in [os.path.join(d, 'songs') for d in config['datadir']]:
             for filename in glob.iglob(os.path.join(songdir, elem)):
-                songlist.append(Song(filename))
+                LOGGER.debug('Parsing file "{}"…'.format(filename))
+                songlist.append(SongRenderer(filename))
             if len(songlist) > before:
                 break
         if len(songlist) == before:
diff --git a/songbook_core/songs.py b/songbook_core/songs.py
index 048e1ffa..5e280413 100644
--- a/songbook_core/songs.py
+++ b/songbook_core/songs.py
@@ -4,17 +4,12 @@
 """Song management."""
 
 from unidecode import unidecode
-import glob
 import locale
-import os.path
 import re
-import logging
 
 from songbook_core.authors import processauthors
 from songbook_core.plastex import parsetex
 
-LOGGER = logging.getLogger(__name__)
-
 # pylint: disable=too-few-public-methods
 class Song(object):
     """Song management"""
@@ -26,8 +21,10 @@ class Song(object):
     #: Dictionnaire des options pour le traitement des auteurs
     authwords = {"after": [], "ignore": [], "sep": []}
 
-    def __init__(self, path, languages, titles, args):
-        self.titles = titles
+    def __init__(self, filename):
+        # Data extraction from the song with plastex
+        data = parsetex(filename)
+        self.titles = data['titles']
         self.normalized_titles = [
                 locale.strxfrm(
                     unprefixed_title(
@@ -36,11 +33,11 @@ class Song(object):
                         )
                     )
                 for title
-                in titles
+                in self.titles
                 ]
-        self.args = args
-        self.path = path
-        self.languages = languages
+        self.args = data['args']
+        self.path = filename
+        self.languages = data['languages']
         if "by" in self.args.keys():
             self.normalized_authors = [
                 locale.strxfrm(author)
@@ -87,23 +84,3 @@ def unprefixed_title(title, prefixes):
     return title
 
 
-class SongbookContent(object):
-    """Manipulation et traitement de liste de chansons"""
-
-    def __init__(self, datadirs):
-        self.songdirs = [os.path.join(d, 'songs')
-                         for d in datadirs]
-        self.content = []  # Sorted list of the content
-
-    def append_song(self, filename):
-        """Ajout d'une chanson à la liste
-
-        Effets de bord : analyse syntaxique plus ou moins sommaire du fichier
-        pour en extraire et traiter certaines information (titre, langue,
-        album, etc.).
-        """
-        LOGGER.debug('Parsing file "{}"…'.format(filename))
-        # Data extraction from the song with plastex
-        data = parsetex(filename)
-        song = Song(filename, data['languages'], data['titles'], data['args'])
-        self.content.append(("song", song))