3 files changed, 3 insertions, 0 deletions
diff --git a/01-song1/parts/bass.ly b/01-song1/parts/bass.ly
index c11763b..6765712 100644
--- a/01-song1/parts/bass.ly
+++ b/01-song1/parts/bass.ly
@@ -20,6 +20,7 @@
     \context {
       \Score
       \numericTimeSignature
+      markFormatter = #format-mark-box-alphabet
     }
   }
 }
diff --git a/01-song1/parts/keys.ly b/01-song1/parts/keys.ly
index 67b248d..bab0550 100644
--- a/01-song1/parts/keys.ly
+++ b/01-song1/parts/keys.ly
@@ -35,6 +35,7 @@
       \Score
       pedalSustainStyle = #'bracket
       \numericTimeSignature
+      markFormatter = #format-mark-box-alphabet
     }
   }
 }
diff --git a/01-song1/parts/stick.ly b/01-song1/parts/stick.ly
index 83c2c75..3659aa4 100644
--- a/01-song1/parts/stick.ly
+++ b/01-song1/parts/stick.ly
@@ -24,6 +24,7 @@
     \context {
       \Score
       \numericTimeSignature
+      markFormatter = #format-mark-box-alphabet
     }
   }
 }