diff --git a/resources/celerity/map.php b/resources/celerity/map.php
--- a/resources/celerity/map.php
+++ b/resources/celerity/map.php
@@ -10,7 +10,7 @@
     'conpherence.pkg.css' => '3c8a0668',
     'conpherence.pkg.js' => '020aebcf',
     'core.pkg.css' => '34ce1741',
-    'core.pkg.js' => 'eaca003c',
+    'core.pkg.js' => 'eb53fc5b',
     'differential.pkg.css' => '8d8360fb',
     'differential.pkg.js' => '67e02996',
     'diffusion.pkg.css' => '42c75c37',
@@ -249,7 +249,7 @@
     'rsrc/externals/javelin/lib/Routable.js' => '6a18c42e',
     'rsrc/externals/javelin/lib/Router.js' => '32755edb',
     'rsrc/externals/javelin/lib/Scrollbar.js' => 'a43ae2ae',
-    'rsrc/externals/javelin/lib/Sound.js' => 'e562708c',
+    'rsrc/externals/javelin/lib/Sound.js' => 'd4cc2d2a',
     'rsrc/externals/javelin/lib/URI.js' => '2e255291',
     'rsrc/externals/javelin/lib/Vector.js' => 'e9c80beb',
     'rsrc/externals/javelin/lib/WebSocket.js' => 'fdc13e4e',
@@ -409,7 +409,7 @@
     'rsrc/js/application/phortune/phortune-credit-card-form.js' => 'd12d214f',
     'rsrc/js/application/policy/behavior-policy-control.js' => '0eaa33a9',
     'rsrc/js/application/policy/behavior-policy-rule-editor.js' => '9347f172',
-    'rsrc/js/application/projects/WorkboardBoard.js' => '65afb173',
+    'rsrc/js/application/projects/WorkboardBoard.js' => '3ba8e6ad',
     'rsrc/js/application/projects/WorkboardCard.js' => '0392a5d8',
     'rsrc/js/application/projects/WorkboardCardTemplate.js' => '2a61f8d4',
     'rsrc/js/application/projects/WorkboardColumn.js' => 'c3d24e63',
@@ -418,7 +418,7 @@
     'rsrc/js/application/projects/WorkboardHeader.js' => '111bfd2d',
     'rsrc/js/application/projects/WorkboardHeaderTemplate.js' => 'ebe83a6b',
     'rsrc/js/application/projects/WorkboardOrderTemplate.js' => '03e8891f',
-    'rsrc/js/application/projects/behavior-project-boards.js' => '8512e4ea',
+    'rsrc/js/application/projects/behavior-project-boards.js' => 'aad45445',
     'rsrc/js/application/projects/behavior-project-create.js' => '34c53422',
     'rsrc/js/application/projects/behavior-reorder-columns.js' => '8ac32fd9',
     'rsrc/js/application/releeph/releeph-preview-branch.js' => '75184d68',
@@ -664,7 +664,7 @@
     'javelin-behavior-phuix-example' => 'c2c500a7',
     'javelin-behavior-policy-control' => '0eaa33a9',
     'javelin-behavior-policy-rule-editor' => '9347f172',
-    'javelin-behavior-project-boards' => '8512e4ea',
+    'javelin-behavior-project-boards' => 'aad45445',
     'javelin-behavior-project-create' => '34c53422',
     'javelin-behavior-quicksand-blacklist' => '5a6f6a06',
     'javelin-behavior-read-only-warning' => 'b9109f8f',
@@ -718,7 +718,7 @@
     'javelin-routable' => '6a18c42e',
     'javelin-router' => '32755edb',
     'javelin-scrollbar' => 'a43ae2ae',
-    'javelin-sound' => 'e562708c',
+    'javelin-sound' => 'd4cc2d2a',
     'javelin-stratcom' => '0889b835',
     'javelin-tokenizer' => '89a1ae3a',
     'javelin-typeahead' => 'a4356cde',
@@ -737,7 +737,7 @@
     'javelin-view-renderer' => '9aae2b66',
     'javelin-view-visitor' => '308f9fe4',
     'javelin-websocket' => 'fdc13e4e',
-    'javelin-workboard-board' => '65afb173',
+    'javelin-workboard-board' => '3ba8e6ad',
     'javelin-workboard-card' => '0392a5d8',
     'javelin-workboard-card-template' => '2a61f8d4',
     'javelin-workboard-column' => 'c3d24e63',
@@ -1227,6 +1227,18 @@
       'javelin-behavior',
       'phabricator-prefab',
     ),
+    '3ba8e6ad' => array(
+      'javelin-install',
+      'javelin-dom',
+      'javelin-util',
+      'javelin-stratcom',
+      'javelin-workflow',
+      'phabricator-draggable-list',
+      'javelin-workboard-column',
+      'javelin-workboard-header-template',
+      'javelin-workboard-card-template',
+      'javelin-workboard-order-template',
+    ),
     '3dc5ad43' => array(
       'javelin-behavior',
       'javelin-stratcom',
@@ -1456,18 +1468,6 @@
     '60cd9241' => array(
       'javelin-behavior',
     ),
-    '65afb173' => array(
-      'javelin-install',
-      'javelin-dom',
-      'javelin-util',
-      'javelin-stratcom',
-      'javelin-workflow',
-      'phabricator-draggable-list',
-      'javelin-workboard-column',
-      'javelin-workboard-header-template',
-      'javelin-workboard-card-template',
-      'javelin-workboard-order-template',
-    ),
     '65bb0011' => array(
       'javelin-behavior',
       'javelin-dom',
@@ -1594,16 +1594,6 @@
       'javelin-dom',
       'javelin-vector',
     ),
-    '8512e4ea' => array(
-      'javelin-behavior',
-      'javelin-dom',
-      'javelin-util',
-      'javelin-vector',
-      'javelin-stratcom',
-      'javelin-workflow',
-      'javelin-workboard-controller',
-      'javelin-workboard-drop-effect',
-    ),
     '87428eb2' => array(
       'javelin-behavior',
       'javelin-diffusion-locate-file-source',
@@ -1848,6 +1838,16 @@
       'javelin-dom',
       'javelin-util',
     ),
+    'aad45445' => array(
+      'javelin-behavior',
+      'javelin-dom',
+      'javelin-util',
+      'javelin-vector',
+      'javelin-stratcom',
+      'javelin-workflow',
+      'javelin-workboard-controller',
+      'javelin-workboard-drop-effect',
+    ),
     'ab85e184' => array(
       'javelin-install',
       'javelin-dom',
@@ -2041,6 +2041,9 @@
     'd3799cb4' => array(
       'javelin-install',
     ),
+    'd4cc2d2a' => array(
+      'javelin-install',
+    ),
     'd8a86cfb' => array(
       'javelin-behavior',
       'javelin-dom',
@@ -2075,9 +2078,6 @@
       'javelin-dom',
       'javelin-history',
     ),
-    'e562708c' => array(
-      'javelin-install',
-    ),
     'e5bdb730' => array(
       'javelin-behavior',
       'javelin-stratcom',
diff --git a/src/__phutil_library_map__.php b/src/__phutil_library_map__.php
--- a/src/__phutil_library_map__.php
+++ b/src/__phutil_library_map__.php
@@ -4179,6 +4179,7 @@
     'PhabricatorProjectTriggerListController' => 'applications/project/controller/trigger/PhabricatorProjectTriggerListController.php',
     'PhabricatorProjectTriggerNameTransaction' => 'applications/project/xaction/trigger/PhabricatorProjectTriggerNameTransaction.php',
     'PhabricatorProjectTriggerPHIDType' => 'applications/project/phid/PhabricatorProjectTriggerPHIDType.php',
+    'PhabricatorProjectTriggerPlaySoundRule' => 'applications/project/trigger/PhabricatorProjectTriggerPlaySoundRule.php',
     'PhabricatorProjectTriggerQuery' => 'applications/project/query/PhabricatorProjectTriggerQuery.php',
     'PhabricatorProjectTriggerRule' => 'applications/project/trigger/PhabricatorProjectTriggerRule.php',
     'PhabricatorProjectTriggerRuleRecord' => 'applications/project/trigger/PhabricatorProjectTriggerRuleRecord.php',
@@ -10309,6 +10310,7 @@
     'PhabricatorProjectTriggerListController' => 'PhabricatorProjectTriggerController',
     'PhabricatorProjectTriggerNameTransaction' => 'PhabricatorProjectTriggerTransactionType',
     'PhabricatorProjectTriggerPHIDType' => 'PhabricatorPHIDType',
+    'PhabricatorProjectTriggerPlaySoundRule' => 'PhabricatorProjectTriggerRule',
     'PhabricatorProjectTriggerQuery' => 'PhabricatorCursorPagedPolicyAwareQuery',
     'PhabricatorProjectTriggerRule' => 'Phobject',
     'PhabricatorProjectTriggerRuleRecord' => 'Phobject',
diff --git a/src/applications/project/controller/PhabricatorProjectBoardViewController.php b/src/applications/project/controller/PhabricatorProjectBoardViewController.php
--- a/src/applications/project/controller/PhabricatorProjectBoardViewController.php
+++ b/src/applications/project/controller/PhabricatorProjectBoardViewController.php
@@ -541,6 +541,7 @@
     $templates = array();
     $all_tasks = array();
     $column_templates = array();
+    $sounds = array();
     foreach ($visible_columns as $column_phid => $column) {
       $column_tasks = $column_phids[$column_phid];
 
@@ -628,6 +629,10 @@
         if ($trigger) {
           $preview_effect = $trigger->getPreviewEffect()
             ->toDictionary();
+
+          foreach ($trigger->getSoundEffects() as $sound) {
+            $sounds[] = $sound;
+          }
         }
       }
 
@@ -684,6 +689,7 @@
 
       'boardID' => $board_id,
       'projectPHID' => $project->getPHID(),
+      'preloadSounds' => $sounds,
     );
     $this->initBehavior('project-boards', $behavior_config);
 
diff --git a/src/applications/project/controller/PhabricatorProjectController.php b/src/applications/project/controller/PhabricatorProjectController.php
--- a/src/applications/project/controller/PhabricatorProjectController.php
+++ b/src/applications/project/controller/PhabricatorProjectController.php
@@ -152,7 +152,8 @@
   protected function newCardResponse(
     $board_phid,
     $object_phid,
-    PhabricatorProjectColumnOrder $ordering = null) {
+    PhabricatorProjectColumnOrder $ordering = null,
+    $sounds = array()) {
 
     $viewer = $this->getViewer();
 
@@ -166,7 +167,8 @@
       ->setViewer($viewer)
       ->setBoardPHID($board_phid)
       ->setObjectPHID($object_phid)
-      ->setVisiblePHIDs($visible_phids);
+      ->setVisiblePHIDs($visible_phids)
+      ->setSounds($sounds);
 
     if ($ordering) {
       $engine->setOrdering($ordering);
diff --git a/src/applications/project/controller/PhabricatorProjectMoveController.php b/src/applications/project/controller/PhabricatorProjectMoveController.php
--- a/src/applications/project/controller/PhabricatorProjectMoveController.php
+++ b/src/applications/project/controller/PhabricatorProjectMoveController.php
@@ -111,6 +111,7 @@
       $xactions[] = $header_xaction;
     }
 
+    $sounds = array();
     if ($column->canHaveTrigger()) {
       $trigger = $column->getTrigger();
       if ($trigger) {
@@ -121,6 +122,10 @@
         foreach ($trigger_xactions as $trigger_xaction) {
           $xactions[] = $trigger_xaction;
         }
+
+        foreach ($trigger->getSoundEffects() as $effect) {
+          $sounds[] = $effect;
+        }
       }
     }
 
@@ -133,7 +138,11 @@
 
     $editor->applyTransactions($object, $xactions);
 
-    return $this->newCardResponse($board_phid, $object_phid, $ordering);
+    return $this->newCardResponse(
+      $board_phid,
+      $object_phid,
+      $ordering,
+      $sounds);
   }
 
 }
diff --git a/src/applications/project/engine/PhabricatorBoardResponseEngine.php b/src/applications/project/engine/PhabricatorBoardResponseEngine.php
--- a/src/applications/project/engine/PhabricatorBoardResponseEngine.php
+++ b/src/applications/project/engine/PhabricatorBoardResponseEngine.php
@@ -7,6 +7,7 @@
   private $objectPHID;
   private $visiblePHIDs;
   private $ordering;
+  private $sounds;
 
   public function setViewer(PhabricatorUser $viewer) {
     $this->viewer = $viewer;
@@ -53,6 +54,15 @@
     return $this->ordering;
   }
 
+  public function setSounds(array $sounds) {
+    $this->sounds = $sounds;
+    return $this;
+  }
+
+  public function getSounds() {
+    return $this->sounds;
+  }
+
   public function buildResponse() {
     $viewer = $this->getViewer();
     $object_phid = $this->getObjectPHID();
@@ -150,6 +160,7 @@
       'columnMaps' => $natural,
       'cards' => $cards,
       'headers' => $headers,
+      'sounds' => $this->getSounds(),
     );
 
     return id(new AphrontAjaxResponse())
diff --git a/src/applications/project/storage/PhabricatorProjectTrigger.php b/src/applications/project/storage/PhabricatorProjectTrigger.php
--- a/src/applications/project/storage/PhabricatorProjectTrigger.php
+++ b/src/applications/project/storage/PhabricatorProjectTrigger.php
@@ -245,6 +245,18 @@
       ->setContent($header);
   }
 
+  public function getSoundEffects() {
+    $sounds = array();
+
+    foreach ($this->getTriggerRules() as $rule) {
+      foreach ($rule->getSoundEffects() as $effect) {
+        $sounds[] = $effect;
+      }
+    }
+
+    return $sounds;
+  }
+
 
 /* -(  PhabricatorApplicationTransactionInterface  )------------------------- */
 
diff --git a/src/applications/project/trigger/PhabricatorProjectTriggerPlaySoundRule.php b/src/applications/project/trigger/PhabricatorProjectTriggerPlaySoundRule.php
new file mode 100644
--- /dev/null
+++ b/src/applications/project/trigger/PhabricatorProjectTriggerPlaySoundRule.php
@@ -0,0 +1,122 @@
+<?php
+
+final class PhabricatorProjectTriggerPlaySoundRule
+  extends PhabricatorProjectTriggerRule {
+
+  const TRIGGERTYPE = 'sound';
+
+  public function getSelectControlName() {
+    return pht('Play sound');
+  }
+
+  protected function assertValidRuleValue($value) {
+    if (!is_string($value)) {
+      throw new Exception(
+        pht(
+          'Status rule value should be a string, but is not (value is "%s").',
+          phutil_describe_type($value)));
+    }
+
+    $map = self::getSoundMap();
+
+    if (!isset($map[$value])) {
+      throw new Exception(
+        pht(
+          'Rule value ("%s") is not a valid sound.',
+          $value));
+    }
+  }
+
+  protected function newDropTransactions($object, $value) {
+    return array();
+  }
+
+  protected function newDropEffects($value) {
+    $sound_icon = 'fa-volume-up';
+    $sound_color = 'blue';
+    $sound_name = self::getSoundName($value);
+
+    $content = pht(
+      'Play sound %s.',
+      phutil_tag('strong', array(), $sound_name));
+
+    return array(
+      $this->newEffect()
+        ->setIcon($sound_icon)
+        ->setColor($sound_color)
+        ->setContent($content),
+    );
+  }
+
+  protected function getDefaultValue() {
+    return head_key(self::getSoundMap());
+  }
+
+  protected function getPHUIXControlType() {
+    return 'select';
+  }
+
+  protected function getPHUIXControlSpecification() {
+    $map = self::getSoundMap();
+    $map = ipull($map, 'name');
+
+    return array(
+      'options' => $map,
+      'order' => array_keys($map),
+    );
+  }
+
+  public function getRuleViewLabel() {
+    return pht('Play Sound');
+  }
+
+  public function getRuleViewDescription($value) {
+    $sound_name = self::getSoundName($value);
+
+    return pht(
+      'Play sound %s.',
+      phutil_tag('strong', array(), $sound_name));
+  }
+
+  public function getRuleViewIcon($value) {
+    $sound_icon = 'fa-volume-up';
+    $sound_color = 'blue';
+
+    return id(new PHUIIconView())
+      ->setIcon($sound_icon, $sound_color);
+  }
+
+  private static function getSoundName($value) {
+    $map = self::getSoundMap();
+    $spec = idx($map, $value, array());
+    return idx($spec, 'name', $value);
+  }
+
+  private static function getSoundMap() {
+    return array(
+      'bing' => array(
+        'name' => pht('Bing'),
+        'uri' => celerity_get_resource_uri('/rsrc/audio/basic/bing.mp3'),
+      ),
+      'glass' => array(
+        'name' => pht('Glass'),
+        'uri' => celerity_get_resource_uri('/rsrc/audio/basic/ting.mp3'),
+      ),
+    );
+  }
+
+  public function getSoundEffects() {
+    $value = $this->getValue();
+
+    $map = self::getSoundMap();
+    $spec = idx($map, $value, array());
+
+    $uris = array();
+    if (isset($spec['uri'])) {
+      $uris[] = $spec['uri'];
+    }
+
+    return $uris;
+  }
+
+}
diff --git a/src/applications/project/trigger/PhabricatorProjectTriggerRule.php b/src/applications/project/trigger/PhabricatorProjectTriggerRule.php
--- a/src/applications/project/trigger/PhabricatorProjectTriggerRule.php
+++ b/src/applications/project/trigger/PhabricatorProjectTriggerRule.php
@@ -60,6 +60,10 @@
     return null;
   }
 
+  public function getSoundEffects() {
+    return array();
+  }
+
   final public function getDropTransactions($object, $value) {
     return $this->newDropTransactions($object, $value);
   }
diff --git a/webroot/rsrc/externals/javelin/lib/Sound.js b/webroot/rsrc/externals/javelin/lib/Sound.js
--- a/webroot/rsrc/externals/javelin/lib/Sound.js
+++ b/webroot/rsrc/externals/javelin/lib/Sound.js
@@ -8,31 +8,75 @@
 JX.install('Sound', {
   statics: {
     _sounds: {},
+    _queue: [],
+    _playingQueue: false,
 
     load: function(uri) {
       var self = JX.Sound;
 
       if (!(uri in self._sounds)) {
-        self._sounds[uri] = JX.$N(
+        var audio = JX.$N(
           'audio',
           {
             src: uri,
             preload: 'auto'
           });
+
+        // In Safari, it isn't good enough to just load a sound in response
+        // to a click: we must also play it. Once we've played it once, we
+        // can continue to play it freely.
+
+        // Play the sound, then immediately pause it. This rejects the "play()"
+        // promise but marks the audio as playable, so our "play()" method will
+        // work correctly later.
+        if (window.webkitAudioContext) {
+          audio.play().then(JX.bag, JX.bag);
+          audio.pause();
+        }
+
+        self._sounds[uri] = audio;
       }
     },
 
-    play: function(uri) {
+    play: function(uri, callback) {
       var self = JX.Sound;
       self.load(uri);
 
       var sound = self._sounds[uri];
 
       try {
-        sound.play();
+        sound.onended = callback || JX.bag;
+        sound.play().then(JX.bag, callback || JX.bag);
       } catch (ex) {
         JX.log(ex);
       }
+    },
+
+    queue: function(uri) {
+      var self = JX.Sound;
+      self._queue.push(uri);
+      self._playQueue();
+    },
+
+    _playQueue: function() {
+      var self = JX.Sound;
+      if (self._playingQueue) {
+        return;
+      }
+      self._playingQueue = true;
+      self._nextQueue();
+    },
+
+    _nextQueue: function() {
+      var self = JX.Sound;
+      if (self._queue.length) {
+        var next = self._queue[0];
+        self._queue.splice(0, 1);
+        self.play(next, self._nextQueue);
+      } else {
+        self._playingQueue = false;
+      }
     }
+
   }
 });
diff --git a/webroot/rsrc/js/application/projects/WorkboardBoard.js b/webroot/rsrc/js/application/projects/WorkboardBoard.js
--- a/webroot/rsrc/js/application/projects/WorkboardBoard.js
+++ b/webroot/rsrc/js/application/projects/WorkboardBoard.js
@@ -529,6 +529,11 @@
 
       this.updateCard(response);
 
+      var sounds = response.sounds || [];
+      for (var ii = 0; ii < sounds.length; ii++) {
+        JX.Sound.queue(sounds[ii]);
+      }
+
       list.unlock();
     },
 
diff --git a/webroot/rsrc/js/application/projects/behavior-project-boards.js b/webroot/rsrc/js/application/projects/behavior-project-boards.js
--- a/webroot/rsrc/js/application/projects/behavior-project-boards.js
+++ b/webroot/rsrc/js/application/projects/behavior-project-boards.js
@@ -166,4 +166,16 @@
 
   board.start();
 
+  // In Safari, we can only play sounds that we've already loaded, and we can
+  // only load them in response to an explicit user interaction like a click.
+  var sounds = config.preloadSounds;
+  var listener = JX.Stratcom.listen('mousedown', null, function() {
+    for (var ii = 0; ii < sounds.length; ii++) {
+      JX.Sound.load(sounds[ii]);
+    }
+
+    // Remove this callback once it has run once.
+    listener.remove();
+  });
+
 });