From 4a364fcbfbd901068beb7bc210fe8c70f3c23689 Mon Sep 17 00:00:00 2001
From: mochi <shenesis@gmail.com>
Date: Wed, 16 Sep 2020 13:12:17 +0200
Subject: [PATCH] Clear null chords from music to fix runtime

---
 code/modules/instruments/songs/_song.dm | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/code/modules/instruments/songs/_song.dm b/code/modules/instruments/songs/_song.dm
index bc9da6f697c..e1b5a8817dd 100644
--- a/code/modules/instruments/songs/_song.dm
+++ b/code/modules/instruments/songs/_song.dm
@@ -290,6 +290,8 @@
   */
 /datum/song/proc/compile_chords()
 	legacy ? compile_legacy() : compile_synthesized()
+	// Some chords may be null for some reason - exclude them.
+	listclearnulls(compiled_chords)
 
 /**
   * Plays a chord.