diff --git a/README.md b/README.md
index d693f427..64faab32 100644
--- a/README.md
+++ b/README.md
@@ -168,6 +168,7 @@ Bug Fixes:
 * Fixed TilemapParser - would spit out a tileset warning if margin/spacing were set (fix #485, thanks Cybolic)
 * AnimationParser.spriteSheet wasn't taking the margin or spacing into account when calculating the numbers of sprites per row/column, nor was it allowing for extra power-of-two padding at the end (fix #482, thanks yig)
 * AnimationManager.add documentation said that 'frames' could be null, but the code couldn't handle this so it defaults to an empty array if none given (thanks yig)
+* Fixed issue stopping SoundManager.volume from working correctly on a global volume basis (fix # 488)
 
 
 TO DO:
diff --git a/examples/wip/focus mute.js b/examples/wip/focus mute.js
new file mode 100644
index 00000000..7bade40b
--- /dev/null
+++ b/examples/wip/focus mute.js	
@@ -0,0 +1,53 @@
+
+var game = new Phaser.Game(800, 600, Phaser.CANVAS, 'phaser-example', { preload: preload, create: create, update: update, render: render });
+
+function preload() {
+
+    game.load.image('disk', 'assets/sprites/ra_dont_crack_under_pressure.png');
+
+    //  Firefox doesn't support mp3 files, so use ogg
+    game.load.audio('boden', ['assets/audio/bodenstaendig_2000_in_rock_4bit.mp3', 'assets/audio/bodenstaendig_2000_in_rock_4bit.ogg']);
+
+}
+
+var s;
+var music;
+
+function create() {
+
+    game.stage.backgroundColor = '#182d3b';
+    game.input.touch.preventDefault = false;
+
+    music = game.add.audio('boden');
+    music.play();
+
+    s = game.add.sprite(game.world.centerX, game.world.centerY, 'disk');
+    s.anchor.setTo(0.5, 0.5);
+
+    game.input.onDown.add(changeVolume, this);
+
+}
+
+function changeVolume(pointer) {
+
+    if (pointer.y < 300)
+    {
+        game.sound.volume += 0.1;
+        // music.volume += 0.1;
+    }
+    else
+    {
+        game.sound.volume -= 0.1;
+        // music.volume -= 0.1;
+    }
+
+}
+
+function update() {
+    s.rotation += 0.01;
+}
+
+function render() {
+    game.debug.renderSoundInfo(music, 20, 32);
+}
+
diff --git a/src/sound/SoundManager.js b/src/sound/SoundManager.js
index 85d506cc..35c093d7 100644
--- a/src/sound/SoundManager.js
+++ b/src/sound/SoundManager.js
@@ -371,6 +371,12 @@ Phaser.SoundManager.prototype = {
 
     },
 
+    /**
+    * Internal mute handler called automatically by the Sound.mute setter.
+    *
+    * @method Phaser.SoundManager#setMute
+    * @private
+    */
     setMute: function () {
 
         if (this._muted)
@@ -397,6 +403,12 @@ Phaser.SoundManager.prototype = {
 
     },
 
+    /**
+    * Internal mute handler called automatically by the Sound.mute setter.
+    *
+    * @method Phaser.SoundManager#unsetMute
+    * @private
+    */
     unsetMute: function () {
 
         if (!this._muted || this._codeMuted)
@@ -487,21 +499,21 @@ Object.defineProperty(Phaser.SoundManager.prototype, "volume", {
 
     set: function (value) {
 
-        value = this.game.math.clamp(value, 1, 0);
-
         this._volume = value;
 
         if (this.usingWebAudio)
         {
             this.masterGain.gain.value = value;
         }
-
-        //  Loop through the sound cache and change the volume of all html audio tags
-        for (var i = 0; i < this._sounds.length; i++)
+        else
         {
-            if (this._sounds[i].usingAudioTag)
+            //  Loop through the sound cache and change the volume of all html audio tags
+            for (var i = 0; i < this._sounds.length; i++)
             {
-                this._sounds[i].volume = this._sounds[i].volume * value;
+                if (this._sounds[i].usingAudioTag)
+                {
+                    this._sounds[i].volume = this._sounds[i].volume * value;
+                }
             }
         }