diff --git a/lieder/authors_sandbox/authors_sandbox.ly b/lieder/authors_sandbox/authors_sandbox.ly
new file mode 100644
index 0000000..3b2a587
--- /dev/null
+++ b/lieder/authors_sandbox/authors_sandbox.ly
@@ -0,0 +1,103 @@
+\version "2.25.8"
+
+\include "../../lilypond-custom-includes/base_config.ly"
+
+#(set! paper-alist (cons '("testformat" . (cons (* 176 mm) (* 15 mm))) paper-alist))
+\paper {
+  #(set-paper-size "testformat")
+}
+
+\bookpart {
+  \header {
+    authors = #'(
+     ("kumpel" text melody))
+  }
+  \markup { \print-songinfo }
+}
+
+\bookpart {
+  \header {
+    year_text = "1500"
+    authors = #'(
+     ("kumpel" text))
+  }
+  \markup { \print-songinfo }
+}
+
+\bookpart {
+  \header {
+    authors = #'(
+     ("kumpel" melody))
+  }
+  \markup { \print-songinfo }
+}
+
+\bookpart {
+  \header {
+    authors = #'(
+     ("kumpel" melody)
+     ("dude" text composition melody))
+  }
+  \markup { \print-songinfo }
+}
+
+\bookpart {
+  \header {
+    authors = #'(
+     ("kumpel" (verse 1))
+     ("dude" melody (voice 1) (voice 2)))
+  }
+  \markup { \print-songinfo }
+}
+
+\bookpart {
+  \header {
+    authors = #'(
+     ("kumpel" text (verse 2))
+     ("dude" (verse 2) (verse 3)))
+  }
+  \markup { \print-songinfo }
+}
+
+\bookpart {
+  \header {
+    authors = #'(
+     ("kumpel" text (voice 2) (voice 3))
+     ("dude" (voice 2) (voice 3))
+     ("nocheiner" (voice 4)))
+  }
+  \markup { \print-songinfo }
+}
+
+\bookpart {
+  \header {
+    year_composition = "2001"
+    year_melody = "1901"
+    authors = #'(
+     ("kumpel" text composition)
+     ("dude" composition))
+  }
+  \markup { \print-songinfo }
+}
+
+\bookpart {
+  \header {
+    authors = #'(
+     ("kumpel" interlude)
+     ("dude" bridge)
+     ("" melody))
+  }
+  \markup { \print-songinfo }
+}
+
+\bookpart {
+  \header {
+    year_melody = "1800"
+    year_translation = "2010"
+    authors = #'(
+     ("kumpel" translation)
+     ("dude" text (meloverse 1))
+     ("" melody))
+  }
+  \markup { \print-songinfo }
+}
\ No newline at end of file
diff --git a/lilypond-common-includes b/lilypond-common-includes
index 7f7cac9..5884ab9 160000
--- a/lilypond-common-includes
+++ b/lilypond-common-includes
@@ -1 +1 @@
-Subproject commit 7f7cac99f4ff0a48192042d80e020969078d7c37
+Subproject commit 5884ab9d2cfc67d5396fd7800ae6da99960fa3fc
diff --git a/lilypond-song-includes/data/authors.json b/lilypond-song-includes/data/authors.json
index fb98336..215c8da 100644
--- a/lilypond-song-includes/data/authors.json
+++ b/lilypond-song-includes/data/authors.json
@@ -10,5 +10,9 @@
     "trail_name": "dudekumpel",
     "death_year": "2050",
     "organization": "Bund der krassen Kumpels"
+  },
+  "nocheiner": {
+    "name": "Jemand anderes",
+    "death_year": "2050"
   }
 }
\ No newline at end of file