diff --git a/music/android_oppression.ogg b/music/android_oppression.ogg
index 0d05b91..41cab7c 100644
Binary files a/music/android_oppression.ogg and b/music/android_oppression.ogg differ
diff --git a/music/sources/android_oppression.mmpz b/music/sources/android_oppression.mmpz
index 3b08f80..4a253ce 100644
Binary files a/music/sources/android_oppression.mmpz and b/music/sources/android_oppression.mmpz differ
diff --git a/src/audio.c b/src/audio.c
index 8379662..cdaae0c 100644
--- a/src/audio.c
+++ b/src/audio.c
@@ -67,7 +67,7 @@ void audio_playSound(int sid, float x, float y)
 	int angle = atanf((x - (screen->w / 2)) / (screen->w / 2)) * 180 / M_PI;
 	int attenuation = fabsf(x - (screen->w / 2)) / (screen->w / 20);
 	float distance = sqrtf(powf(fabsf(x - (screen->w / 2)), 2) + powf(fabsf(y - (screen->h / 2)), 2));
-	const int max_volume = MIX_MAX_VOLUME / 4;
+	const int max_volume = MIX_MAX_VOLUME;
 	int volume = max_volume - (max_volume * distance / (3 * screen->w));
 
 	if ((!engine.useSound) || (!engine.useAudio) || (volume <= 0))
@@ -179,14 +179,14 @@ void audio_setMusicPosition(double position)
 #endif
 }
 
-void audio_playMusic(const char *filename, int loops, int amplified)
+void audio_playMusic(const char *filename, int loops)
 {
 #ifndef NOSOUND
 	if (engine.useMusic && engine.useAudio)
 	{
 		audio_haltMusic();
 		music = Mix_LoadMUS(filename);
-		audio_setMusicVolume(amplified ? MIX_MAX_VOLUME : MIX_MAX_VOLUME / 4);
+		audio_setMusicVolume(MIX_MAX_VOLUME);
 		Mix_PlayMusic(music, loops);
 	}
 #endif
@@ -236,13 +236,13 @@ void audio_playRandomTrack()
 		case MISN_INTERCEPTION:
 			if ((aliens[ALIEN_KLINE].classDef == CD_KLINE)
 					&& aliens[ALIEN_KLINE].active)
-				audio_playMusic("music/last_cyber_dance.ogg", -1, 0);
+				audio_playMusic("music/last_cyber_dance.ogg", -1);
 			else if ((game.system == SYSTEM_MORDOR)
 					&& (aliens[ALIEN_BOSS].classDef == CD_CLOAKFIGHTER)
 					&& aliens[ALIEN_BOSS].active)
-				audio_playMusic("music/space_dimensions.ogg", -1, 0);
+				audio_playMusic("music/space_dimensions.ogg", -1);
 			else
-				audio_playMusic("music/railjet_short.ogg", -1, 0);
+				audio_playMusic("music/railjet_short.ogg", -1);
 			break;
 		case MISN_HAIL:
 		case MISN_JOLDAR:
@@ -250,7 +250,7 @@ void audio_playRandomTrack()
 		case MISN_SIVEDI:
 		case MISN_NEPTUNE:
 		case MISN_SATURN:
-			audio_playMusic("music/frozen_jam.ogg", -1, 0);
+			audio_playMusic("music/frozen_jam.ogg", -1);
 			break;
 		case MISN_CERADSE:
 		case MISN_ALLEZ:
@@ -258,7 +258,7 @@ void audio_playRandomTrack()
 		case MISN_FELLON:
 		case MISN_POSWIC:
 		case MISN_MARS:
-			audio_playMusic("music/sound_and_silence.ogg", -1, 0);
+			audio_playMusic("music/sound_and_silence.ogg", -1);
 			break;
 		case MISN_HINSTAG:
 		case MISN_NEROD:
@@ -267,7 +267,7 @@ void audio_playRandomTrack()
 		case MISN_PLUTO:
 		case MISN_URANUS:
 		case MISN_JUPITER:
-			audio_playMusic("music/space_dimensions.ogg", -1, 0);
+			audio_playMusic("music/space_dimensions.ogg", -1);
 			break;
 #endif
 		case MISN_MOEBO:
@@ -275,20 +275,20 @@ void audio_playRandomTrack()
 		case MISN_ELLESH:
 		case MISN_EARTH:
 #ifdef OLD_MUSIC
-			audio_playMusic("music/HardTranceDub.mod", -1, 0);
+			audio_playMusic("music/HardTranceDub.mod", -1);
 #else
-			audio_playMusic("music/orbital_colossus.ogg", -1, 0);
+			audio_playMusic("music/orbital_colossus.ogg", -1);
 #endif
 			break;
 		case MISN_VENUS:
 #ifdef OLD_MUSIC
-			audio_playMusic("music/LoopsAndTings.mod", -1, 0);
+			audio_playMusic("music/LoopsAndTings.mod", -1);
 #else
-			audio_playMusic("music/androids_last_dance.ogg", -1, 0);
+			audio_playMusic("music/androids_last_dance.ogg", -1);
 #endif
 			break;
 		default:
-			audio_playMusic(track[rand() % tracks], -1, 0);
+			audio_playMusic(track[rand() % tracks], -1);
 	}
 #endif
 }
diff --git a/src/audio.h b/src/audio.h
index 84c227a..af6d3a9 100644
--- a/src/audio.h
+++ b/src/audio.h
@@ -30,7 +30,7 @@ void audio_pauseMusic();
 void audio_resumeMusic();
 void audio_setMusicVolume(int volume);
 void audio_setMusicPosition(double position);
-void audio_playMusic(const char *filename, int loops, int amplified);
+void audio_playMusic(const char *filename, int loops);
 void audio_playRandomTrack();
 void audio_free();
 
diff --git a/src/engine.c b/src/engine.c
index cd1973b..ffabcc3 100644
--- a/src/engine.c
+++ b/src/engine.c
@@ -56,7 +56,7 @@ Engine engine;
 
 void engine_init()
 {
-	engine.musicVolume = 100;
+	engine.musicVolume = MIX_MAX_VOLUME;
 	engine.useAudio = 1;
 
 	engine.maxAliens = 9;
diff --git a/src/game.c b/src/game.c
index ae26b04..00125f4 100644
--- a/src/game.c
+++ b/src/game.c
@@ -24,6 +24,10 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 #include "SDL.h"
 
+#ifndef NOSOUND
+#include "SDL_mixer.h"
+#endif
+
 #include "colors.h"
 #include "defs.h"
 #include "structs.h"
@@ -2449,9 +2453,9 @@ static void game_showGameOver()
 	SDL_Delay(1000);
 
 #ifdef OLD_MUSIC
-	audio_playMusic("music/Wybierak.mod", -1, 0);
+	audio_playMusic("music/Wybierak.mod", -1);
 #else
-	audio_playMusic("music/reremix.ogg", -1, 1);
+	audio_playMusic("music/reremix.ogg", -1);
 #endif
 
 	int x = (screen->w - gameover->w) / 2;
@@ -2685,7 +2689,7 @@ int game_mainLoop()
 	engine.counter2 = (SDL_GetTicks() + 1000);
 
 	engine.missionCompleteTimer = 0;
-	engine.musicVolume = 100;
+	engine.musicVolume = MIX_MAX_VOLUME;
 
 	int rtn = 0;
 
@@ -2793,7 +2797,7 @@ int game_mainLoop()
 						engine.keyState[KEY_ALTFIRE] = 0;
 						engine.xaxis = 0;
 						engine.yaxis = 0;
-						LIMIT_ADD(engine.musicVolume, -0.2, 0, 100);
+						LIMIT_ADD(engine.musicVolume, -0.2, 0, MIX_MAX_VOLUME);
 						audio_setMusicVolume(engine.musicVolume);
 					}
 					else
@@ -2809,7 +2813,7 @@ int game_mainLoop()
 			else
 			{
 				player_getInput();
-				LIMIT_ADD(engine.musicVolume, -0.2, 0, 100);
+				LIMIT_ADD(engine.musicVolume, -0.2, 0, MIX_MAX_VOLUME);
 				audio_setMusicVolume(engine.musicVolume);
 				if (SDL_GetTicks() >= engine.missionCompleteTimer)
 				{
diff --git a/src/intermission.c b/src/intermission.c
index de0df2d..1bf3e90 100644
--- a/src/intermission.c
+++ b/src/intermission.c
@@ -1319,9 +1319,9 @@ static void intermission_doOptions(SDL_Surface *optionsSurface, int x, int y)
 		{
 			engine.useMusic = 1;
 #ifdef OLD_MUSIC
-			audio_playMusic("music/3DParadise.mod", -1, 0);
+			audio_playMusic("music/3DParadise.mod", -1);
 #else
-			audio_playMusic("music/through_space.ogg", -1, 0);
+			audio_playMusic("music/through_space.ogg", -1);
 #endif
 		}
 
@@ -1505,9 +1505,9 @@ int intermission()
 
 	if ((engine.useAudio) && (engine.useMusic))
 #ifdef OLD_MUSIC
-		audio_playMusic("music/3DParadise.mod", -1, 0);
+		audio_playMusic("music/3DParadise.mod", -1);
 #else
-		audio_playMusic("music/through_space.ogg", -1, 0);
+		audio_playMusic("music/through_space.ogg", -1);
 #endif
 
 	/// Retain "%s" as-is.  It is replaced with the current system name.
diff --git a/src/mission.c b/src/mission.c
index b1f1f0c..c702894 100644
--- a/src/mission.c
+++ b/src/mission.c
@@ -925,9 +925,9 @@ static int mission_revealObjectives()
 			aliens[ALIEN_KLINE].flags |= FL_IMMORTAL | FL_NOFIRE;
 			player_setTarget(ALIEN_KLINE);
 #ifdef OLD_MUSIC
-			audio_playMusic("music/TranceGeneration.mod", -1, 0);
+			audio_playMusic("music/TranceGeneration.mod", -1);
 #else
-			audio_playMusic("music/last_cyber_dance.ogg", -1, 0);
+			audio_playMusic("music/last_cyber_dance.ogg", -1);
 #endif
 		}
 	}
diff --git a/src/title.c b/src/title.c
index a3dcdbb..5d585c2 100644
--- a/src/title.c
+++ b/src/title.c
@@ -316,9 +316,9 @@ int title_show()
 	engine.keyState[KEY_FIRE] = engine.keyState[KEY_ALTFIRE] = 0;
 
 #ifdef OLD_MUSIC
-	audio_playMusic("music/Platinum.mod", 1, 0);
+	audio_playMusic("music/Platinum.mod", 1);
 #else
-	audio_playMusic("music/android_oppression.ogg", 1, 1);
+	audio_playMusic("music/android_oppression.ogg", 1);
 #endif
 
 	while (!engine.done)
@@ -522,9 +522,9 @@ int title_show()
 							if (engine.useMusic)
 							{
 #ifdef OLD_MUSIC
-								audio_playMusic("music/Platinum.mod", 1, 0);
+								audio_playMusic("music/Platinum.mod", 1);
 #else
-								audio_playMusic("music/android_oppression.ogg", 1, 1);
+								audio_playMusic("music/android_oppression.ogg", 1);
 #endif
 							}
 							else
@@ -659,9 +659,9 @@ void title_showCredits()
 	screen_drawBackground();
 
 #ifdef OLD_MUSIC
-	audio_playMusic("music/Solace.s3m", 1, 0);
+	audio_playMusic("music/Solace.s3m", 1);
 #else
-	audio_playMusic("music/rise_of_spirit.ogg", 1, 0);
+	audio_playMusic("music/rise_of_spirit.ogg", 1);
 #endif
 
 	fp = fopen("data/credits.txt", "rb");