Implemented placeholders for a bunch of sound triggers.

app/views/game-menu/GameMenuModal.coffee

@@ -34,6 +34,7 @@ module.exports = class GameMenuModal extends ModalView
     @$el.toggleClas
     @insertSubView new submenuView @options for submenuView in submenuViews
     (if @options.showInventory then @subviews.inventory_view else @subviews.choose_hero_view).$el.addClass 'active'
+    Backbone.Mediator.publish 'audio-player:play-sound', trigger: 'game-menu-open', volume: 1
 
   onHidden: ->
     subview.onHidden?() for subviewKey, subview of @subviews

app/views/game-menu/GuideView.coffee

@@ -14,3 +14,4 @@ module.exports = class GuideView extends CocoView
 
   afterRender: ->
     super()
+    #Backbone.Mediator.publish 'audio-player:play-sound', trigger: 'guide-open', volume: 1  # no, only when the tab is activated

app/views/kinds/RootView.coffee

@@ -134,6 +134,7 @@ module.exports = class RootView extends CocoView
             d.msRequestFullscreen or
             (if d.webkitRequestFullscreen then -> d.webkitRequestFullscreen Element.ALLOW_KEYBOARD_INPUT else null)
       req?.call d
+      Backbone.Mediator.publish 'audio-player:play-sound', trigger: 'full-screen-start', volume: 1 if req
     else
       nah = document.exitFullscreen or
             document.mozCancelFullScreen or
@@ -141,4 +142,5 @@ module.exports = class RootView extends CocoView
             document.msExitFullscreen or
             document.webkitExitFullscreen
       nah?.call document
+      Backbone.Mediator.publish 'audio-player:play-sound', trigger: 'full-screen-end', volume: 1 if nah
     return

app/views/play/level/LevelGoalsView.coffee

@@ -27,10 +27,9 @@ module.exports = class LevelGoalsView extends CocoView
       @mouseEntered = false
       @updatePlacement()
 
-  toggleCollapse: (e) ->
-    @$el.toggleClass('expanded').toggleClass('collapsed')
-
   onNewGoalStates: (e) ->
+    firstRun = @previousGoalStatus?
+    @previousGoalStatus ?= {}
     @$el.find('.goal-status').addClass 'secret'
     classToShow = null
     classToShow = 'success' if e.overallStatus is 'success'
@@ -38,7 +37,6 @@ module.exports = class LevelGoalsView extends CocoView
     classToShow ?= 'timed-out' if e.timedOut
     classToShow ?= 'incomplete'
     @$el.find('.goal-status.'+classToShow).removeClass 'secret'
-
     list = $('#primary-goals-list', @$el)
     list.empty()
     goals = []
@@ -63,6 +61,10 @@ module.exports = class LevelGoalsView extends CocoView
       li.prepend($('<i></i>').addClass(stateIconMap[state.status]))
       list.append(li)
       goals.push goal
+      if not firstRun and state.status is 'success' and @previousGoalStatus[goal.id] isnt 'success'
+        Backbone.Mediator.publish 'audio-player:play-sound', trigger: 'goal-success', volume: 1
+      else if not firstRun and state.status is 'incomplete' and @previousGoalStatus[goal.id] is 'success'
+        Backbone.Mediator.publish 'audio-player:play-sound', trigger: 'goal-incomplete-again', volume: 1
     @$el.removeClass('secret') if goals.length > 0
 
   onSurfacePlaybackRestarted: ->
@@ -84,12 +86,13 @@ module.exports = class LevelGoalsView extends CocoView
     @updatePlacement()
 
   updatePlacement: ->
-    if @playbackEnded or @mouseEntered
-      # expand
-      @$el.css('top', -10)
-    else
-      # collapse
-      @$el.css('top', 26 - @$el.outerHeight())
+    expand = @playbackEnded or @mouseEntered
+    return if expand is @expanded
+    sound = if expand then 'goals-expand' else 'goals-collapse'
+    top = if expand then -10 else 26 - @$el.outerHeight()
+    @$el.css 'top', top
+    Backbone.Mediator.publish 'audio-player:play-sound', trigger: sound, volume: 1 if @expanded?
+    @expanded = expand
 
   onSetLetterbox: (e) ->
     @$el.toggle not e.on

app/views/play/level/LevelLoadingView.coffee

@@ -31,6 +31,7 @@ module.exports = class LevelLoadingView extends CocoView
     loadingDetails.css 'top', -loadingDetails.outerHeight(true)
     @$el.find('.left-wing').css left: '-100%', backgroundPosition: 'right -400px top 0'
     @$el.find('.right-wing').css right: '-100%', backgroundPosition: 'left -400px top 0'
+    Backbone.Mediator.publish 'audio-player:play-sound', trigger: 'loading-view-unveil', volume: 1
     _.delay @onUnveilEnded, duration * 1000
 
   onUnveilEnded: =>

app/views/play/level/LevelPlaybackView.coffee

@@ -165,6 +165,7 @@ module.exports = class LevelPlaybackView extends CocoView
     @realTime = true
     @togglePlaybackControls false
     Backbone.Mediator.publish 'playback:real-time-playback-started', {}
+    Backbone.Mediator.publish 'audio-player:play-sound', trigger: 'real-time-playback-start', volume: 1
 
   onRealTimeMultiplayerCast: (e) ->
     @realTime = true
@@ -226,7 +227,9 @@ module.exports = class LevelPlaybackView extends CocoView
     @playing = (e ? {}).playing ? true
     button = @$el.find '#play-button'
     ended = button.hasClass 'ended'
+    changed = button.hasClass('playing') isnt @playing
     button.toggleClass('playing', @playing and not ended).toggleClass('paused', not @playing and not ended)
+    Backbone.Mediator.publish 'audio-player:play-sound', trigger: (if @playing then 'playback-play' else 'playback-pause'), volume: 1
     return   # don't stripe the bar
     bar = @$el.find '.scrubber .progress'
     bar.toggleClass('progress-striped', @playing and not ended).toggleClass('active', @playing and not ended)
@@ -306,6 +309,7 @@ module.exports = class LevelPlaybackView extends CocoView
     return unless @realTime
     @realTime = false
     @togglePlaybackControls true
+    Backbone.Mediator.publish 'audio-player:play-sound', trigger: 'real-time-playback-end', volume: 1
 
   onStopRealTimePlayback: (e) ->
     Backbone.Mediator.publish 'playback:real-time-playback-ended', {}
@@ -323,14 +327,19 @@ module.exports = class LevelPlaybackView extends CocoView
       animate: 'slow'
       slide: (event, ui) =>
         return if @shouldIgnore()
+        ++@slideCount
+        oldRatio = @getScrubRatio()
         @scrubTo ui.value / @sliderIncrements
-        @slideCount += 1
+        if ratioChange = @getScrubRatio() - oldRatio
+          sound = "playback-scrub-slide-#{if ratioChange > 0 then 'forward' else 'back'}-#{@slideCount % 3}"
+          Backbone.Mediator.publish 'audio-player:play-sound', trigger: sound, volume: Math.min 1, Math.abs ratioChange * 50
 
       start: (event, ui) =>
         return if @shouldIgnore()
         @slideCount = 0
         @wasPlaying = @playing
         Backbone.Mediator.publish 'level:set-playing', {playing: false}
+        Backbone.Mediator.publish 'audio-player:play-sound', trigger: 'playback-scrub-start', volume: 1
 
       stop: (event, ui) =>
         return if @shouldIgnore()
@@ -341,6 +350,8 @@ module.exports = class LevelPlaybackView extends CocoView
           @wasPlaying = false
           Backbone.Mediator.publish 'level:set-playing', {playing: false}
           @$el.find('.scrubber-handle').effect('bounce', {times: 2})
+        else
+          Backbone.Mediator.publish 'audio-player:play-sound', trigger: 'playback-scrub-end', volume: 1
     )
 
   getScrubRatio: ->

app/views/play/level/modal/LevelGuideModal.coffee

@@ -46,9 +46,11 @@ module.exports = class LevelGuideModal extends ModalView
       @$el.find('.nav-tabs li:first').addClass('active')
       @$el.find('.tab-content .tab-pane:first').addClass('active')
       @$el.find('.nav-tabs a').click(@clickTab)
+    Backbone.Mediator.publish 'audio-player:play-sound', trigger: 'guide-open', volume: 1
 
   clickTab: (e) =>
     @$el.find('li.active').removeClass('active')
+    Backbone.Mediator.publish 'audio-player:play-sound', trigger: 'guide-tab-switch', volume: 1
 
   afterInsert: ->
     super()

app/views/play/level/tome/SpellListTabEntryView.coffee

@@ -89,6 +89,7 @@ module.exports = class SpellListTabEntryView extends SpellListEntryView
   onDropdownClick: (e) ->
     return unless @controlsEnabled
     Backbone.Mediator.publish 'tome:toggle-spell-list', {}
+    Backbone.Mediator.publish 'audio-player:play-sound', trigger: 'spell-list-open', volume: 1
 
   onCodeReload: (e) ->
     return unless @controlsEnabled

app/views/play/level/tome/SpellPaletteEntryView.coffee

@@ -48,6 +48,7 @@ module.exports = class SpellPaletteEntryView extends CocoView
     window.element = @$el
     @$el.on 'show.bs.popover', =>
       Backbone.Mediator.publish 'tome:palette-hovered', thang: @thang, prop: @doc.name, entry: @
+      Backbone.Mediator.publish 'audio-player:play-sound', trigger: 'spell-palette-entry-open', volume: 1
 
   onMouseEnter: (e) ->
     # Make sure the doc has the updated Thang so it can regenerate its prop value
@@ -71,6 +72,7 @@ module.exports = class SpellPaletteEntryView extends CocoView
       x = $('<button type="button" data-dismiss="modal" aria-hidden="true" class="close">×</button>')
       $('.spell-palette-popover.popover').append x
       x.on 'click', @onClick
+      Backbone.Mediator.publish 'audio-player:play-sound', trigger: 'spell-palette-entry-pin', volume: 1
     Backbone.Mediator.publish 'tome:palette-pin-toggled', entry: @, pinned: @popoverPinned
 
   onClick: (e) =>

app/views/play/level/tome/SpellView.coffee

@@ -348,6 +348,7 @@ module.exports = class SpellView extends CocoView
     ]
     @onCodeChangeMetaHandler = =>
       return if @eventsSuppressed
+      Backbone.Mediator.publish 'audio-player:play-sound', trigger: 'code-change', volume: 0.5
       @spell.hasChangedSignificantly @getSource(), @spellThang.aether.raw, (hasChanged) =>
         if not @spellThang or hasChanged
           callback() for callback in onSignificantChange  # Do these first