Rendering code refactor

folkugat_web/assets/templates/lilypond/tune_set.ly

@@ -0,0 +1,31 @@
+{{ score_beginning }}
+\version "2.24.4"
+\book {
+  \paper {
+    top-margin = 10
+    left-margin = 15
+    right-margin = 15
+
+    scoreTitleMarkup = \markup {
+      \center-column {
+        \fontsize #3 \bold \fromproperty #'header:piece
+        \fill-line {
+          \null
+          \right-column {
+            \fromproperty #'header:composer
+          }
+        }
+      }
+    }
+  }
+
+  \header {
+    title = \markup { "{{ tune_set.title | safe }}" }
+    tagline = "Partitura generada amb LilyPond"
+    copyright = "Folkugat"
+  }
+
+  {% for tune in tune_set.tunes %}
+    {% include "lilypond/tune_in_set.ly" %}
+  {% endfor %}
+}