diff --git a/src/testdata/battle_against_a_true_hero.txt b/src/testdata/battle_against_a_true_hero.txt
new file mode 100644
index 0000000..ef3b5a0
--- /dev/null
+++ b/src/testdata/battle_against_a_true_hero.txt
@@ -0,0 +1,9 @@
+# https://www.musicnotes.com/sheetmusic/chrissy-ricker/battle-against-a-true-hero-easy/MN0235808
+# c major
+
+CM4 CM5 CM5 CM1 CM1 CM2 . .
+
+CM3 CM0 CM0 CM4 CM4 .   . .
+
+CM4 CM5 CM5 CM1 CM1 CM2 . .
+