diff --git a/examples/songs/chevaliers_de_la_table_ronde.sg b/examples/songs/chevaliers_de_la_table_ronde.sg
index 77dfa869..81a725ef 100644
--- a/examples/songs/chevaliers_de_la_table_ronde.sg
+++ b/examples/songs/chevaliers_de_la_table_ronde.sg
@@ -1,7 +1,7 @@
 \selectlanguage{french}
 \songcolumns{2}
 \beginsong{Chevaliers de la table ronde}
-  [by={Traditionnel},cov={traditionnel},album={France}]
+  [by={Traditionnel},cover={traditionnel},album={France}]
 
   \cover
   \gtab{C}{X32010}
diff --git a/examples/songs/example-en.sg b/examples/songs/example-en.sg
index 7009cc68..971507a6 100644
--- a/examples/songs/example-en.sg
+++ b/examples/songs/example-en.sg
@@ -24,7 +24,7 @@
 % traditionnel : the file "8-bit-lagerfeuer.jpg" that corresponds to the album art
 % 8 bit lagerfeuer : the album whose song is extracted from 
 \beginsong{Sad robot}
-  [by={Pornophonique},cov={traditionnel},album={8 bit lagerfeuer}]
+  [by={Pornophonique},cover={traditionnel},album={8 bit lagerfeuer}]
 
   % inserts the album art (8-bit-lagerfeuer.jpg)
   \cover
diff --git a/examples/songs/example-fr.sg b/examples/songs/example-fr.sg
index c9264096..a0d68b58 100644
--- a/examples/songs/example-fr.sg
+++ b/examples/songs/example-fr.sg
@@ -26,7 +26,7 @@
 % traditionnel : le fichier "8-bit-lagerfeuer.jpg" correspondant à la pochette de l'album
 % 8 bit lagerfeuer : le nom de l'album dont la chanson est extraite
 \beginsong{Sad robot}
-  [by={Pornophonique},cov={traditionnel},album={8 bit lagerfeuer}]
+  [by={Pornophonique},cover={traditionnel},album={8 bit lagerfeuer}]
 
   % insère la pochette de l'album (8-bit-lagerfeuer.jpg)
   \cover
diff --git a/examples/songs/greensleeves.sg b/examples/songs/greensleeves.sg
index 469fab99..2d9f3c19 100644
--- a/examples/songs/greensleeves.sg
+++ b/examples/songs/greensleeves.sg
@@ -1,7 +1,7 @@
 \selectlanguage{english}
 \songcolumns{2}
 \beginsong{Greensleeves}
-  [by={Traditionnel},cov={traditionnel},album={Angleterre}]
+  [by={Traditionnel},cover={traditionnel},album={Angleterre}]
 
   \cover
   \gtab{Am}{X02210}
diff --git a/examples/songs/vent_frais.sg b/examples/songs/vent_frais.sg
index 36584ad7..662a9ea2 100644
--- a/examples/songs/vent_frais.sg
+++ b/examples/songs/vent_frais.sg
@@ -1,7 +1,7 @@
 \selectlanguage{french}
 \songcolumns{2}
 \beginsong{Vent frais}
-  [by={Traditionnel},cov={traditionnel},album={France}]
+  [by={Traditionnel},cover={traditionnel},album={France}]
 
   \cover
   \gtab{Dm}{XX0231}
diff --git a/patacrep/data/latex/patacrep.sty b/patacrep/data/latex/patacrep.sty
index d3735739..9368d118 100644
--- a/patacrep/data/latex/patacrep.sty
+++ b/patacrep/data/latex/patacrep.sty
@@ -139,7 +139,7 @@
 \setlength{\coverspace}{0.1cm}
 \newcommand{\songcover}{}
 \newcommand{\songalbum}{}
-\newsongkey{cov}{\let\songcover\@empty}{\def\songcover{#1}}
+\newsongkey{cover}{\let\songcover\@empty}{\def\songcover{#1}}
 \newsongkey{album}{\let\songalbum\@empty}{\def\songalbum{#1}}
 \newsongkey{url}{\let\songurl\@empty}{\def\songurl{#1}}
 \newsongkey{original}{\let\songoriginal\@empty}{\def\songoriginal{#1}}
diff --git a/patacrep/songs/chordpro/__init__.py b/patacrep/songs/chordpro/__init__.py
index c46a0880..5095c4da 100644
--- a/patacrep/songs/chordpro/__init__.py
+++ b/patacrep/songs/chordpro/__init__.py
@@ -26,7 +26,7 @@ class ChordproSong(Song):
             song = parse_song(song.read(), self.fullpath)
         self.authors = song.authors
         self.titles = song.titles
-        self.lang = song.get_data_argument('lang', self.config['lang'])
+        self.lang = song.get_data_argument('language', self.config['lang'])
         self.data = song.meta
         self.cached = {
             'song': song,
diff --git a/patacrep/songs/chordpro/ast.py b/patacrep/songs/chordpro/ast.py
index 87ce2a34..0bfc4013 100644
--- a/patacrep/songs/chordpro/ast.py
+++ b/patacrep/songs/chordpro/ast.py
@@ -24,7 +24,7 @@ AVAILABLE_DIRECTIVES = [
     "guitar_comment",
     "image",
     "key",
-    "lang",
+    "language",
     "newline",
     "partition",
     "subtitle",
@@ -51,8 +51,8 @@ DIRECTIVE_SHORTCUTS = {
     "by": "artist",
     "c": "comment",
     "gc": "guitar_comment",
-    "cover": "cov",
-    "language": "lang",
+    "cov": "cover",
+    "lang": "language",
     }
 
 def directive_name(text):
diff --git a/patacrep/songs/chordpro/data/chordpro/song_header b/patacrep/songs/chordpro/data/chordpro/song_header
index 2ffb1d30..cefca9de 100644
--- a/patacrep/songs/chordpro/data/chordpro/song_header
+++ b/patacrep/songs/chordpro/data/chordpro/song_header
@@ -21,8 +21,8 @@
     {(( key )): (( metadata[key] ))}
   (* endif *)
 (* endfor *)
-(* if 'cov' in metadata -*)
-  {(( 'cov' )): (( metadata['cov'].argument|search_image ))}
+(* if 'cover' in metadata -*)
+  {(( 'cover' )): (( metadata['cover'].argument|search_image ))}
 (* endif *)
 
 (*- for key in metadata.morekeys -*)
diff --git a/patacrep/songs/chordpro/data/latex/song b/patacrep/songs/chordpro/data/latex/song
index 6f026c79..1e2ceaf8 100644
--- a/patacrep/songs/chordpro/data/latex/song
+++ b/patacrep/songs/chordpro/data/latex/song
@@ -27,11 +27,11 @@
   (( key ))={(( metadata[key] ))},
   (* endif *)
   (* endfor *)
-  (* if 'cov' in metadata *)
-    (* block cov *)
-      (* set cov = metadata["cov"].argument|search_image *)
-      (* if cov *)
-    cov={(( cov ))},
+  (* if 'cover' in metadata *)
+    (* block cover *)
+      (* set cover = metadata["cover"].argument|search_image *)
+      (* if cover *)
+    cover={(( cover ))},
       (* endif *)
     (* endblock *)
   (* endif *)
@@ -40,7 +40,7 @@
   (* endfor *)
 ]
 
-(* if (metadata.cov is defined) *)
+(* if (metadata.cover is defined) *)
 \cover
 (* endif *)
 
diff --git a/test/test_chordpro/greensleeves.sgc b/test/test_chordpro/greensleeves.sgc
index 7ff25a58..aec06809 100644
--- a/test/test_chordpro/greensleeves.sgc
+++ b/test/test_chordpro/greensleeves.sgc
@@ -5,7 +5,7 @@
 {title: Un sous titre}
 {artist:  Traditionnel}
 {album: Angleterre}
-{cov: traditionnel}
+{cover: traditionnel}
 
 
 {partition: greensleeves.ly}
diff --git a/test/test_chordpro/greensleeves.tex b/test/test_chordpro/greensleeves.tex
index f582b0c8..c4bc461d 100644
--- a/test/test_chordpro/greensleeves.tex
+++ b/test/test_chordpro/greensleeves.tex
@@ -7,7 +7,7 @@ Un sous titre}[
   by={
          Traditionnel  },
   album={Angleterre},
-    cov={img/traditionnel},
+    cover={img/traditionnel},
 ]
 
 \cover
diff --git a/test/test_chordpro/metadata.sgc b/test/test_chordpro/metadata.sgc
index 22c59f59..322a591b 100644
--- a/test/test_chordpro/metadata.sgc
+++ b/test/test_chordpro/metadata.sgc
@@ -10,7 +10,7 @@
 {artist: Texte de Jean Richepin, chanté par Georges Brassens}
 {album: Album}
 {copyright: Copyright}
-{cov: metadata_cover}
+{cover: metadata_cover}
 {key: foo: Foo}
 
 {comment: Comment}
diff --git a/test/test_chordpro/metadata.tex b/test/test_chordpro/metadata.tex
index d2a2273a..0be273f1 100644
--- a/test/test_chordpro/metadata.tex
+++ b/test/test_chordpro/metadata.tex
@@ -11,7 +11,7 @@ Subtitle5}[
         Texte de Jean Richepin, chanté par Georges Brassens  },
   album={Album},
   copyright={Copyright},
-    cov={img/test/test_chordpro/metadata_cover},
+    cover={img/test/test_chordpro/metadata_cover},
   foo={Foo},
 ]
 
diff --git a/test/test_compilation/datadir.tex.control b/test/test_compilation/datadir.tex.control
index 4f6c8521..a003cd42 100644
--- a/test/test_compilation/datadir.tex.control
+++ b/test/test_compilation/datadir.tex.control
@@ -103,7 +103,7 @@ guitar,
 Chordpro}[
   by={
   },
-    cov={img/datadir.png},
+    cover={img/datadir.png},
 ]
 
 \cover
@@ -130,7 +130,7 @@ Chordpro}[
 Chordpro}[
   by={
   },
-    cov={img/datadir2.png},
+    cover={img/datadir2.png},
 ]
 
 \cover
@@ -157,7 +157,7 @@ Chordpro}[
 Chordpro}[
   by={
   },
-    cov={@TEST_FOLDER@/datadir_datadir/songs/./relative.png},
+    cover={@TEST_FOLDER@/datadir_datadir/songs/./relative.png},
 ]
 
 \cover
@@ -184,7 +184,7 @@ Chordpro}[
 Chordpro}[
   by={
   },
-    cov={@TEST_FOLDER@/datadir_datadir/songs/./subdir/subdir.png},
+    cover={@TEST_FOLDER@/datadir_datadir/songs/./subdir/subdir.png},
 ]
 
 \cover
diff --git a/test/test_compilation/datadir_datadir/songs/datadir.sg b/test/test_compilation/datadir_datadir/songs/datadir.sg
index 933e208b..eb937410 100644
--- a/test/test_compilation/datadir_datadir/songs/datadir.sg
+++ b/test/test_compilation/datadir_datadir/songs/datadir.sg
@@ -1,5 +1,5 @@
 \beginsong{Image included from datadir\\\LaTeX}
-  [cov={img/datadir}]
+  [cover={img/datadir}]
 
   \cover
 
diff --git a/test/test_compilation/datadir_datadir/songs/datadir2.sg b/test/test_compilation/datadir_datadir/songs/datadir2.sg
index 6a805725..f37f351f 100644
--- a/test/test_compilation/datadir_datadir/songs/datadir2.sg
+++ b/test/test_compilation/datadir_datadir/songs/datadir2.sg
@@ -1,5 +1,5 @@
 \beginsong{Image included from a different datadir\\\LaTeX}
-  [cov={img/datadir2}]
+  [cover={img/datadir2}]
 
   \cover
 
diff --git a/test/test_compilation/datadir_datadir/songs/relative.sg b/test/test_compilation/datadir_datadir/songs/relative.sg
index 681b4086..3fc326f0 100644
--- a/test/test_compilation/datadir_datadir/songs/relative.sg
+++ b/test/test_compilation/datadir_datadir/songs/relative.sg
@@ -1,5 +1,5 @@
 \beginsong{Image included from song directory\\\LaTeX}
-  [cov={relative}]
+  [cover={relative}]
 
   \cover
 
diff --git a/test/test_compilation/datadir_datadir/songs/subdir/subdir.sg b/test/test_compilation/datadir_datadir/songs/subdir/subdir.sg
index f86b47b4..b2199460 100644
--- a/test/test_compilation/datadir_datadir/songs/subdir/subdir.sg
+++ b/test/test_compilation/datadir_datadir/songs/subdir/subdir.sg
@@ -1,5 +1,5 @@
 \beginsong{Image included from a nested song directory\\\LaTeX}
-  [cov={subdir}]
+  [cover={subdir}]
 
   \cover