diff --git a/script/audioLibrary.js b/script/audioLibrary.js
index b44e03b..bcb3b24 100644
--- a/script/audioLibrary.js
+++ b/script/audioLibrary.js
@@ -38,8 +38,6 @@ var AudioLibrary = {
     MUSIC_MODEST_VILLAGE: 'audio/modest-village.flac',
     MUSIC_LARGE_VILLAGE: 'audio/large-village.flac',
     MUSIC_RAUCOUS_VILLAGE: 'audio/raucous-village.flac',
-    MUSIC_COMBAT: 'audio/combat.flac',
-    MUSIC_EVENT: 'audio/event.flac',
     MUSIC_FIRE_DEAD: 'audio/fire-dead.flac',
     MUSIC_FIRE_SMOLDERING: 'audio/fire-smoldering.flac',
     MUSIC_FIRE_FLICKERING: 'audio/fire-flickering.flac',
@@ -47,11 +45,6 @@ var AudioLibrary = {
     MUSIC_FIRE_ROARING: 'audio/fire-roaring.flac',
     MUSIC_WORLD: 'audio/world.flac',
     MUSIC_SPACE: 'audio/space.flac',
-    MUSIC_TROPOSPHERE: 'audio/troposphere.flac',
-    MUSIC_STRATOSPHERE: 'audio/stratosphere.flac',
-    MUSIC_MESOSPHERE: 'audio/mesosphere.flac',
-    MUSIC_THERMOSPHERE: 'audio/thermosphere.flac',
-    MUSIC_EXOSPHERE: 'audio/exosphere.flac',
     MUSIC_ENDING: 'audio/ending.flac',
     MUSIC_SHIP: 'audio/ship.flac',
     LIGHT_FIRE: 'audio/light-fire.flac',