diff --git a/lib/audio.lua b/lib/audio.lua
index d3647b0..f2f1f0a 100644
--- a/lib/audio.lua
+++ b/lib/audio.lua
@@ -4,6 +4,7 @@ local AnimationNode = require "lib.animation_node"
 --- @class Audio
 --- @field musicVolume number
 --- @field soundVolume number
+--- @field animationNode AnimationNode?
 audio = {}
 audio.__index = audio
 
@@ -15,6 +16,13 @@ local function new(musicVolume, soundVolume)
     }, audio)
 end
 
+function audio:update(dt)
+    if self.animationNode then
+        self.animationNode:update(dt)
+        print(self.animationNode.t)
+        print(self.animationNode:getValue())
+    end
+end
 
 --- if from is nil, than we have fade in to;
 --- if to is nil, than we have fade out from
@@ -22,7 +30,7 @@ end
 --- also we should guarantee, that from and to have the same volume
 --- @param from love.Source
 --- @param to love.Source
---- @param ms? number in milliseconds
+--- @param ms number? in milliseconds
 function audio:crossfade(from, to, ms)
     to:setVolume(0)
     to:play()
@@ -46,13 +54,13 @@ end
 --- also we should guarantee, that from and to have the same volume
 --- @param from love.Source
 --- @param to love.Source
---- @param ms? number in milliseconds
+--- @param ms number? in milliseconds
 function audio:crossfadeAnim(from, to, ms)
     to:setVolume(0)
     to:play()
     print(from:getVolume(), to:getVolume())
     local t = 0
-    local anim = AnimationNode {
+    self.animationNode = AnimationNode {
         function(node)
             from:setVolume(self.musicVolume - node:getValue() * self.musicVolume)
             to:setVolume(node:getValue() * self.musicVolume)
@@ -79,8 +87,8 @@ function audio:crossfadeAnim(from, to, ms)
         --     }
         -- }
     }
-    anim:run()
-    anim:finish()
+    self.animationNode:run()
+    -- anim:finish()
     print(from:getVolume(), to:getVolume(), t, t, t)
 end
 
diff --git a/lib/spellbook.lua b/lib/spellbook.lua
index 6283e14..8502f07 100644
--- a/lib/spellbook.lua
+++ b/lib/spellbook.lua
@@ -51,7 +51,9 @@ function walk:cast(caster, target)
     local sprite = caster:has(Tree.behaviors.sprite)
     if not sprite then return true end
     AnimationNode {
-        function(node) caster:has(Tree.behaviors.map):followPath(path, node) end,
+        function(node)
+            caster:has(Tree.behaviors.map):followPath(path, node)
+        end,
         onEnd = function() caster:has(Tree.behaviors.spellcaster):endCast() end,
     }:run()
 
@@ -91,7 +93,7 @@ function regenerateMana:cast(caster, target)
             local audioPath = Tree.assets.files.audio
             sprite:animate("hurt", node)
             Tree.audio:crossfadeAnim(audioPath.music.level1.battle,
-                audioPath.music.level1.choral, 3000)
+                audioPath.music.level1.choral, 2000)
         end,
         onEnd = function() caster:has(Tree.behaviors.spellcaster):endCast() end
     }:run()
diff --git a/main.lua b/main.lua
index 256ba45..2e03e89 100644
--- a/main.lua
+++ b/main.lua
@@ -32,6 +32,7 @@ function love.update(dt)
     testLayout:update(dt)        -- потом UI, потому что нужно перехватить жесты и не пустить их дальше
     Tree.panning:update(dt)
     Tree.level:update(dt)
+    Tree.audio:update(dt)
 
     Tree.controls:cache()