diff --git a/xulmus/TODO b/xulmus/TODO
index 6f60c324..109039ee 100644
--- a/xulmus/TODO
+++ b/xulmus/TODO
@@ -2,6 +2,7 @@ Priority list:
 1-9 as in Vim (9 = required for next release, 5 = would be nice, 1 = probably not)
 
 BUGS:
+- SB doesn't support tab-undo yet so :undo and "u" etc don't work
 
 FEATURES:
 9 / and ? possibly reusing "Jump to" functionality directly.
diff --git a/xulmus/content/player.js b/xulmus/content/player.js
index e6d80ca3..92322f93 100755
--- a/xulmus/content/player.js
+++ b/xulmus/content/player.js
@@ -11,10 +11,13 @@ function Player() // {{{
     // Get the focus to the visible playlist first
     //window._SBShowMainLibrary();
 
-    // FIXME: need to test that we're playing - why is gMM.playbackControl.status always null?
+    // FIXME: need to test that we're playing - gMM.status.state
     // interval (seconds)
     function seek(interval, direction)
     {
+        if (!gMM.playbackControl)
+            return;
+
         interval = interval * 1000;
 
         let min = 0;
@@ -127,7 +130,15 @@ function Player() // {{{
             completer: function (context, args) completion.song(context, args)
         });
 
-    // TODO: better of as a single command, or cmus compatible E.g. :player-next? --djk
+    // TODO: better off as a single command, or cmus compatible E.g. :player-next? --djk
+    commands.add(["playerp[lay]"],
+        "Play track",
+        function () { player.play(); });
+
+    commands.add(["playerpa[use]"],
+        "Pause/unpause track",
+        function () { player.togglePlayPause(); });
+
     commands.add(["playern[ext]"],
         "Play next track",
         function () { player.next(); });
@@ -140,13 +151,26 @@ function Player() // {{{
         "Stop track",
         function () { player.stop(); });
 
-    commands.add(["playerp[lay]"],
-        "Play track",
-        function () { player.play(); });
+    commands.add(["vol[ume]"],
+        "Set the volume",
+        function (args)
+        {
+            let arg = args[0];
 
-    commands.add(["playerpa[use]"],
-        "Pause/unpause track",
-        function () { player.togglePlayPause(); });
+            if (!/^[+-]?\d+$/.test(arg))
+            {
+                liberator.echoerr("E488: Trailing characters");
+                return;
+            }
+
+            let level = parseInt(arg, 10) / 100;
+
+            if (/^[+-]/.test(arg))
+                level = player.volume + level;
+
+            player.volume = Math.min(Math.max(level, 0), 1);
+        },
+        { argCount: 1 });
 
     /////////////////////////////////////////////////////////////////////////////}}}
     ////////////////////// PUBLIC SECTION //////////////////////////////////////////
@@ -154,6 +178,13 @@ function Player() // {{{
 
     return {
 
+        // TODO: check bounds and round, 0 - 1 or 0 - 100?
+        get volume() gMM.volumeControl.volume,
+        set volume(value)
+        {
+            gMM.volumeControl.volume = value;
+        },
+
         play: function play()
         {
             gMM.sequencer.play();
@@ -209,14 +240,12 @@ function Player() // {{{
 
         seekForward: function seekForward(interval)
         {
-            if (gMM.playbackControl)
-                seek(interval, true);
+            seek(interval, true);
         },
 
         seekBackward: function seekBackward(interval)
         {
-            if (gMM.playbackControl)
-                seek(interval, false);
+            seek(interval, false);
         },
 
         //FIXME: 10% ?
diff --git a/xulmus/locale/en-US/player.txt b/xulmus/locale/en-US/player.txt
index 14768329..3f9d4e97 100644
--- a/xulmus/locale/en-US/player.txt
+++ b/xulmus/locale/en-US/player.txt
@@ -5,6 +5,8 @@ HEADER
 The following features apply to Player mode which is activated when the media
 tab has focus.
 
+section:Playing{nbsp}tracks[playing-tracks]
+
 |x| |:playerp| |:playerplay|
 ||:playerp[lay]|| +
 ||x||
@@ -57,6 +59,20 @@ ________________________________________________________________________________
 Toggle repeat mode.
 ________________________________________________________________________________
 
+section:Filtering{nbsp}the{nbsp}library[filter,filtering]
+
+|f| |:f| |:filter|
+||:f[ilter] [a][artist][a] [a]{album}[a] [a]{track}[a]|| +
+||f||
+________________________________________________________________________________
+Filter and play tracks. If only [a][artist][a] is specified then all tracks for
+that artist are played in album order. If {album} is also specified then all
+tracks for that album are played. A specific track can be specified with
+{track}.
+________________________________________________________________________________
+
+
+section:Seeking{nbsp}to{nbsp}a{nbsp}track{nbsp}position[seeking]
 
 |h|
 ||h||
@@ -86,6 +102,8 @@ Seek -1m.
 ________________________________________________________________________________
 
 
+section:Adjusting{nbsp}the{nbsp}volume[volume]
+
 |+| |=|
 ||+|| +
 ||=||
@@ -93,6 +111,7 @@ ________________________________________________________________________________
 Increase volume by 10%.
 ________________________________________________________________________________
 
+
 |-|
 ||-||
 ________________________________________________________________________________
@@ -100,14 +119,12 @@ Decrease volume by 10%.
 ________________________________________________________________________________
 
 
-|f| |:f| |:filter|
-||:f[ilter] [a][artist][a] [a]{album}[a] [a]{track}[a]|| +
-||f||
+|:vol| |:volume|
+||:vol[ume][!] [a][value][a]|| +
+||:vol[ume][!] +{value} | -{value}|| +
 ________________________________________________________________________________
-Filter and play tracks. If only [a][artist][a] is specified then all tracks for
-that artist are played in album order. If {album} is also specified then all
-tracks for that album are played. A specific track can be specified with
-{track}.
+Set the player volume. [a][value][a] can be an absolute value between 0 and
+100% or a relative value if prefixed with "-" or "+".
 ________________________________________________________________________________
 
 // vim: set filetype=asciidoc: