diff --git a/songs/Alain_Bashung/Gaby_oh_gaby.sg b/songs/Alain_Bashung/Gaby_oh_gaby.sg
index 506d9441..5859b820 100644
--- a/songs/Alain_Bashung/Gaby_oh_gaby.sg
+++ b/songs/Alain_Bashung/Gaby_oh_gaby.sg
@@ -2,7 +2,7 @@
 \beginsong{Gaby, oh Gaby}[by=Alain Bashung,cov=roulette-russe]
 
 \cover
-\gtab{Mi}{033200}
+\gtab{Mi}{022100}
 \gtab{La}{X02220}
 \gtab{Si}{2:X02220}
 \gtab{Fa#}{2:022100}
diff --git a/songs/Bob_Dylan/Blowin_in_the_wind.sg b/songs/Bob_Dylan/Blowin_in_the_wind.sg
index 9eeeb06b..59876e84 100644
--- a/songs/Bob_Dylan/Blowin_in_the_wind.sg
+++ b/songs/Bob_Dylan/Blowin_in_the_wind.sg
@@ -2,9 +2,9 @@
 \beginsong{Blowin' in the wind}[by=Bob Dylan,cov=the-freewheelin]
 
 \cover
-\gtab{Ré}{320003}
-\gtab{Sol}{032010}
-\gtab{La}{000232}
+\gtab{Ré}{XX0232}
+\gtab{Sol}{320003}
+\gtab{La}{002220}
 
 \beginverse
 \[Ré]How many \[Sol]roads must a \[La]man walk \[Ré]down
diff --git a/songs/Eels/Packing_blankets.sg b/songs/Eels/Packing_blankets.sg
index ecf0ab2b..36f64717 100644
--- a/songs/Eels/Packing_blankets.sg
+++ b/songs/Eels/Packing_blankets.sg
@@ -6,7 +6,7 @@
 \gtab{Ré}{000232}
 \gtab{Sol}{320003}
 \gtab{La}{002220}
-\gtab{Fa#m}{1:022000}
+\gtab{Fa#m}{2:022000}
 \gtab{Sim}{2:002210}
 \gtab{Mim}{022000}
 
diff --git a/songs/Georges_Brassens/Les_copains_d_abord.sg b/songs/Georges_Brassens/Les_copains_d_abord.sg
index bb8e6cd5..9a4639cd 100644
--- a/songs/Georges_Brassens/Les_copains_d_abord.sg
+++ b/songs/Georges_Brassens/Les_copains_d_abord.sg
@@ -2,7 +2,7 @@
 \beginsong{Les copains d'abord}[by=Georges Brassens,cov=les-copains-d-abord]
 
 \cover
-\gtab{Ré}{330210}
+\gtab{Ré}{XX0232}
 \gtab{Mi7}{020100}
 \gtab{Sol}{320003}
 \gtab{Fa#}{2:022100}
diff --git a/songs/Joe_Dassin/Siffler_sur_la_colline.sg b/songs/Joe_Dassin/Siffler_sur_la_colline.sg
index 07f3fa53..6931620a 100644
--- a/songs/Joe_Dassin/Siffler_sur_la_colline.sg
+++ b/songs/Joe_Dassin/Siffler_sur_la_colline.sg
@@ -8,7 +8,7 @@
 \gtab{Mi7}{020100}
 \gtab{Lam}{002210}
 \gtab{Sol}{320003}
-\gtab{Rém}{X00232}
+\gtab{Rém}{XX0231}
 
 
 \beginchorus
diff --git a/songs/Le_Donjon_de_Naheulbeuk/Mon_ancetre_Gurdil.sg b/songs/Le_Donjon_de_Naheulbeuk/Mon_ancetre_Gurdil.sg
index 3d687fd1..9464411f 100644
--- a/songs/Le_Donjon_de_Naheulbeuk/Mon_ancetre_Gurdil.sg
+++ b/songs/Le_Donjon_de_Naheulbeuk/Mon_ancetre_Gurdil.sg
@@ -5,7 +5,7 @@
 \cover
 \gtab{Mim}{022000}
 \gtab{Si7}{X21202}
-\gtab{Ré}{X00231}
+\gtab{Ré}{XX0232}
 \gtab{Sol}{320003}
 
 
diff --git a/songs/Les_Cowboys_Fringants/La_reine.sg b/songs/Les_Cowboys_Fringants/La_reine.sg
index 7553548c..d5647237 100644
--- a/songs/Les_Cowboys_Fringants/La_reine.sg
+++ b/songs/Les_Cowboys_Fringants/La_reine.sg
@@ -3,8 +3,8 @@
 
 \cover
 \gtab{Mim}{022000}
-\gtab{Lam}{022100}
-\gtab{Ré}{000232}
+\gtab{Lam}{002210}
+\gtab{Ré}{XX0232}
 \gtab{Do}{X32010}
 \gtab{Sim}{2:002210}
 
diff --git a/songs/Les_Cowboys_Fringants/Les_hirondelles.sg b/songs/Les_Cowboys_Fringants/Les_hirondelles.sg
index 240cb4be..0594d266 100644
--- a/songs/Les_Cowboys_Fringants/Les_hirondelles.sg
+++ b/songs/Les_Cowboys_Fringants/Les_hirondelles.sg
@@ -5,9 +5,9 @@
 \cover
 \gtab{Sim}{2:002210}
 \gtab{La}{5:022100}
-\gtab{Sol}{022000}
-\gtab{Ré}{1:022100}
-\gtab{Fa#}{1:022100}
+\gtab{Sol}{3:022100}
+\gtab{Ré}{XX0232}
+\gtab{Fa#}{2:022100}
 
 \beginverse
 \[Sim]Quand on le voyait 
diff --git a/songs/Les_Ogres_de_Barback/Petite_societe.sg b/songs/Les_Ogres_de_Barback/Petite_societe.sg
index 49acb966..39d052f3 100644
--- a/songs/Les_Ogres_de_Barback/Petite_societe.sg
+++ b/songs/Les_Ogres_de_Barback/Petite_societe.sg
@@ -6,7 +6,7 @@
 \gtab{Rém}{5:002210}
 \gtab{Fa}{1:022100}
 \gtab{Do}{3:002220}
-\gtab{Si&}{5:022100}
+\gtab{Si&}{6:022100}
 \gtab{La}{5:022100}
 
 
diff --git a/songs/Les_VRP/Leo.sg b/songs/Les_VRP/Leo.sg
index 2c776e77..dc6d6f6a 100644
--- a/songs/Les_VRP/Leo.sg
+++ b/songs/Les_VRP/Leo.sg
@@ -5,7 +5,7 @@
 \cover
 \gtab{Lam}{5:022000}
 \gtab{Rém}{5:002210}
-\gtab{Mi7}{4:X3231X}
+\gtab{Mi7}{5:X2120X}
 
 
 \beginverse
diff --git a/songs/Oldelaf_et_Monsieur_D/J_veux_etre_muscle.sg b/songs/Oldelaf_et_Monsieur_D/J_veux_etre_muscle.sg
index 9ceb9210..90963fcb 100644
--- a/songs/Oldelaf_et_Monsieur_D/J_veux_etre_muscle.sg
+++ b/songs/Oldelaf_et_Monsieur_D/J_veux_etre_muscle.sg
@@ -7,7 +7,6 @@
 \gtab{Solm}{{10}:002210}
 \gtab{Fa}{8:002220}
 \gtab{Si&}{6:022100}
-\gtab{Fa7}{8:002020}
 \gtab{Ré7}{5:002020}
 
 %tabs pour le refrain
@@ -21,7 +20,7 @@
 \beginverse
 J'veux être mus\[Solm]clé
 Pour pouvoir \[Fa]frimer sur la plage pendant l'é\[Si&]té
-Pour pouvoir m'\[Fa7]inscrire dans un club de beach-vol\[Solm]ley
+Pour pouvoir m'\[Fa]inscrire dans un club de beach-vol\[Solm]ley
 Pour épa\[Fa]ter les filles et puis les faire rê\[Si&]ver
 J'veux être mus\[Ré7]clé, j'veux être mus\[Solm]clé
 \endverse
diff --git a/songs/Oldelaf_et_Monsieur_D/Raoul_le_pitbull.sg b/songs/Oldelaf_et_Monsieur_D/Raoul_le_pitbull.sg
index 1f533e75..385f010a 100644
--- a/songs/Oldelaf_et_Monsieur_D/Raoul_le_pitbull.sg
+++ b/songs/Oldelaf_et_Monsieur_D/Raoul_le_pitbull.sg
@@ -5,24 +5,23 @@
 \cover
 \gtab{Mim}{7:002210}
 \gtab{Lam}{5:022000}
-\gtab{Si}{7:022100}
 \gtab{Si7}{7:020100}
 \gtab{Fa#7}{6:X3231X}
 \gtab{Ré7}{5:002020}
-\gtab{Sol}{2:022100}
-\gtab{Mi7}{4:X3231X}
+\gtab{Sol}{3:022100}
+\gtab{Mi7}{5:X2120X}
 \gtab{Do}{8:022100}
 
 
 \beginverse
 \[Mim]Mais où est-donc passée Grand-Mère ?
 Je l'ai cherchée toute la jour\[Lam]née 
-J'l'avais lai\[Si]ssée sur l'rocking chair
+J'l'avais lai\[Si7]ssée sur l'rocking chair
 Y'avait Sevran à la té\[Mim]lé
 Mais je m'inquiète son siège est vide
 Personne l'a vue dans la mai\[Lam]son
 \[Si7]A-t-elle été un peu ti\[Mim]mide
-Pour nous ca\[Fa#7]cher ses ambi\[Si]tions
+Pour nous ca\[Fa#7]cher ses ambi\[Si7]tions
 \[Ré7]Est-elle partie vers d'autres \[Sol]terres
 Goûter \[Ré7]aux délices des \[Sol]rois
 \[Si7]Chercher des jades en montgol\[Mim]fière ?
@@ -31,7 +30,7 @@ Mon \[Fa#7]grand fiston m'a dit : ``J'crois \[Si7]pas \dots''
 
 \beginchorus
 C'est Ra\[Mim]oul mon pitbull 
-Qui l'a trouvée appétiss\[Si]ante 
+Qui l'a trouvée appétiss\[Si7]ante 
 C'est Raoul mon pitbull
 Il est gentil mais quelle des\[Mim]cente ! 
 Il aime jouer, il est cool
diff --git a/songs/Oldelaf_et_Monsieur_D/Rue_de_Nantes.sg b/songs/Oldelaf_et_Monsieur_D/Rue_de_Nantes.sg
index 2d3cf5f5..813f3af8 100644
--- a/songs/Oldelaf_et_Monsieur_D/Rue_de_Nantes.sg
+++ b/songs/Oldelaf_et_Monsieur_D/Rue_de_Nantes.sg
@@ -4,7 +4,7 @@
 
 \cover
 \gtab{Rém}{5:002210}
-\gtab{Mi7}{4:X3231X}
+\gtab{Mi7}{5:X2120X}
 \gtab{La7}{5:020100}
 \gtab{Fa}{1:022100}
 \gtab{Do}{3:002220}
diff --git a/songs/Pixies/Where_Is_My_Mind.sg b/songs/Pixies/Where_Is_My_Mind.sg
index 8502383e..f4d0767a 100644
--- a/songs/Pixies/Where_Is_My_Mind.sg
+++ b/songs/Pixies/Where_Is_My_Mind.sg
@@ -4,20 +4,20 @@
 \cover
 \gtab{Mi}{022100}
 \gtab{Do#m}{4:X02210}
-\gtab{La&m}{4:133211}
-\gtab{La}{5:133211}
+\gtab{La&}{4:022100}
+\gtab{La}{5:022100}
 \gtab{Do#}{4:X02220}
-\gtab{Si}{2:X13331}
+\gtab{Si}{2:002220}
 
 \beginverse
-With your \[Mi]feet in the air and your \[Do#m]head on the ground. \[La&m] \[La]
-\[Mi] Try this trick\[Do#m] and s\[La&m]pin it. Ye\[La]ah,
-\[Mi] Your head will coll\[Do#m]apse but there's \[La&m]nothing in it and you'll \[La]ask yourself.
+With your \[Mi]feet in the air and your \[Do#m]head on the ground. \[La&] \[La]
+\[Mi] Try this trick\[Do#m] and s\[La&]pin it. Ye\[La]ah,
+\[Mi] Your head will coll\[Do#m]apse but there's \[La&]nothing in it and you'll \[La]ask yourself.
 \endverse
 
 \beginchorus
-\[Mi]Where is my \[Do#m]mind? \[La&m] Where is my mind?\[La]
-\[Mi]Where is my \[Do#m]mind? \[La&m] \[La]
+\[Mi]Where is my \[Do#m]mind? \[La&] Where is my mind?\[La]
+\[Mi]Where is my \[Do#m]mind? \[La&] \[La]
 \endchorus
 
 \beginverse*
diff --git a/songs/Terra_Naomi/Say_It_s_Possible.sg b/songs/Terra_Naomi/Say_It_s_Possible.sg
index 303a4a8f..3798627b 100644
--- a/songs/Terra_Naomi/Say_It_s_Possible.sg
+++ b/songs/Terra_Naomi/Say_It_s_Possible.sg
@@ -5,7 +5,7 @@
 \gtab{Mim7}{022033}
 \gtab{Do9}{X32033}
 \gtab{Sol}{320033}
-\gtab{Sol/Fa#}{200033}
+\gtab{Sol/Fa#}{2X0033}
 
 \beginverse
 \[Mim7]I \[Do9]see the \[Sol]lights are \[Sol/Fa#]turning and I 
diff --git a/songs/The_Animals/The_house_of_rising_sun.sg b/songs/The_Animals/The_house_of_rising_sun.sg
index 8af21102..7731c8d0 100644
--- a/songs/The_Animals/The_house_of_rising_sun.sg
+++ b/songs/The_Animals/The_house_of_rising_sun.sg
@@ -1,11 +1,11 @@
 \beginsong{House of the rising sun}[by=The Animals,cov=the-animals]
 
 \cover
-\gtab{Lam}{1:X02210}
-\gtab{Do}{1:X32010}
-\gtab{Ré}{1:XX0232}
+\gtab{Lam}{X02210}
+\gtab{Do}{X32010}
+\gtab{Ré}{XX0232}
 \gtab{Fa}{1:022100}
-\gtab{Mi7}{1:022130}
+\gtab{Mi7}{022130}
 
 \beginverse
 \[Lam]There is a \[Do]house in \[Ré]New Orleans, \[Fa]
diff --git a/songs/The_Beatles/Let_it_be.sg b/songs/The_Beatles/Let_it_be.sg
index a8047889..4b9f71f6 100644
--- a/songs/The_Beatles/Let_it_be.sg
+++ b/songs/The_Beatles/Let_it_be.sg
@@ -7,18 +7,18 @@
 \gtab{Sol}{320003}
 \gtab{Fa}{1:022100}
 \gtab{Mim}{022000}
-\gtab{Rem}{XX0231}
+\gtab{Rém}{XX0231}
 
 \beginverse
 When I \[Do]find myself in \[Sol]times of trouble, \[Lam]Mother Mary \[Fa]comes to me,
-\[Do]Speaking words of \[Sol]wisdom, let it \[Fa]be. \[Do] \[Rem] \[Do]
+\[Do]Speaking words of \[Sol]wisdom, let it \[Fa]be. \[Do] \[Rém] \[Do]
 And \[Do]in my hour of \[Sol]darkness, she is \[Lam]standing right in \[Fa]front of me,
-\[Do]Speaking words of \[Sol]wisdom, let it \[Fa]be. \[Do] \[Rem] \[Do]
+\[Do]Speaking words of \[Sol]wisdom, let it \[Fa]be. \[Do] \[Rém] \[Do]
 \endverse
 
 \beginchorus
 Let it \[Lam]be, let it \[Sol]be, let it \[Fa]be, let it \[Do]be.
-\[Do]Whisper words of \[Sol]wisdom, let it \[Fa]be. \[Do] \[Rem] \[Do]
+\[Do]Whisper words of \[Sol]wisdom, let it \[Fa]be. \[Do] \[Rém] \[Do]
 \endchorus  
 
 \beginverse