From 4ffbcc79d28eaff6f7e15aceb4c9c488f82a9e43 Mon Sep 17 00:00:00 2001
From: Michael Winter <mwinter@unboundedpress.org>
Date: Mon, 23 Mar 2026 19:55:48 +0100
Subject: [PATCH] Fix score block structure - wrap staves in StaffGroup

---
 lilypond/score_template.ly |  2 +-
 src/transcriber.py         | 13 ++++++++++++-
 2 files changed, 13 insertions(+), 2 deletions(-)

diff --git a/lilypond/score_template.ly b/lilypond/score_template.ly
index 9a8aa0f..474b58e 100644
--- a/lilypond/score_template.ly
+++ b/lilypond/score_template.ly
@@ -109,4 +109,4 @@
 }
 
 
-{STAVES}
+{SCORE}
diff --git a/src/transcriber.py b/src/transcriber.py
index 3d98c83..fedc328 100644
--- a/src/transcriber.py
+++ b/src/transcriber.py
@@ -502,7 +502,18 @@ def generate_score(name, num_voices, output_dir="lilypond"):
         }}
 '''
 
-    score_text = score_text.replace("{STAVES}", staves)
+    score_block = f"""\\score{{
+  <<
+    \\new StaffGroup {{
+      <<
+{staves}
+      >>
+    }}
+  >>
+  \\layout{{}}
+}}"""
+
+    score_text = score_text.replace("{SCORE}", score_block)
 
     with open(score_path, "w") as f:
         f.write(score_text)