diff --git a/public/src/js/controller.js b/public/src/js/controller.js
index 9350649..c2029b6 100644
--- a/public/src/js/controller.js
+++ b/public/src/js/controller.js
@@ -88,7 +88,7 @@ function Controller(selectedSong, songData, autoPlayEnabled){
         
         if (score.fail == 0) {
             vp = 'fullcombo';
-            _this.playSoundMeka('fullcombo', 1350);
+            _this.playSoundMeka('fullcombo', 1.350);
         } else if (score.hp >= 50) {
             vp = 'clear';
         } else {
diff --git a/public/src/js/game.js b/public/src/js/game.js
index 5d1ee77..45f4e86 100644
--- a/public/src/js/game.js
+++ b/public/src/js/game.js
@@ -199,11 +199,14 @@ function Game(controller, selectedSong, songData){
         if(_fadeOutStarted){
             if(_musicFadeOut==0){
                 snd.musicGain.fadeOut(1.6)
-                _mainAsset.stop(1.6)
-                snd.musicGain.fadeIn(0, 1.7)
             }
             if(_ellapsedTime.ms>=_fadeOutStarted+1600){
                 controller.fadeOutOver()
+                _mainAsset.stop()
+                setTimeout(() => {
+                    snd.musicGain.fadeIn()
+                    snd.musicGain.unmute()
+                }, 1000)
             }
             _musicFadeOut++;
         }
@@ -224,7 +227,7 @@ function Game(controller, selectedSong, songData){
     
     this.toggleMainMusic = function(){
         if(_mainMusicPlaying){
-            _mainAsset.pause();
+            _mainAsset.stop();
             _mainMusicPlaying=false;
         }
         else{
@@ -237,10 +240,6 @@ function Game(controller, selectedSong, songData){
         _fadeOutStarted=false;
     }
     
-    this.pauseSound = function(soundID, stop){
-        _soundSystem.pauseSound(soundID, stop);
-    }
-    
     this.getHitcircleSpeed = function(){
         return _hitcircleSpeed;
     }
diff --git a/public/src/js/scoresheet.js b/public/src/js/scoresheet.js
index 7280ada..0273535 100644
--- a/public/src/js/scoresheet.js
+++ b/public/src/js/scoresheet.js
@@ -97,7 +97,7 @@ function Scoresheet(controller, score){
 	}
 	
 	assets.sounds["results"].play()
-	assets.sounds["bgm_result"].playLoop(0, false, 0, 0.846625)
+	assets.sounds["bgm_result"].playLoop(0.1, false, 0, 0.847, 17.689)
 	
 	$("#screen").load("/src/views/scoresheet.html", _this.run);
     
diff --git a/public/src/js/songselect.js b/public/src/js/songselect.js
index 7ab7bdd..bea8ef0 100644
--- a/public/src/js/songselect.js
+++ b/public/src/js/songselect.js
@@ -4,7 +4,6 @@ function SongSelect(){
 	var _selectedSong = {title:'', folder:'', difficulty:''};
 	var _preview;
 	var _preview_ended
-	var _preview_startLoad
 	var _diffNames={
 		easy:"かんたん",
 		normal:"ふつう",
@@ -14,7 +13,7 @@ function SongSelect(){
 	
 	this.startPreview = function(id, prvtime, first_open=true) {
 		_this.endPreview();
-		_preview_startLoad = +new Date
+		var startLoad = +new Date
 		_preview_ended = false
 		if(first_open){
 			snd.musicGain.fadeOut(0.4)
@@ -28,21 +27,23 @@ function SongSelect(){
 		if(songObj.sound){
 			_preview = songObj.sound
 			_preview.gain = snd.previewGain
-			this.previewLoaded(prvtime)
+			this.previewLoaded(startLoad, prvtime, first_open)
 		}else{
 			snd.previewGain.load("/songs/" + id + "/main.mp3").then(sound => {
 				if(!_preview_ended){
 					songObj.sound = sound
 					_preview = sound
-					this.previewLoaded(prvtime)
+					this.previewLoaded(startLoad, prvtime, first_open)
 				}
 			})
 		}
 	};
 	
-	this.previewLoaded = function(prvtime){
+	this.previewLoaded = function(startLoad, prvtime, first_open){
 		var endLoad = +new Date
-		var delay = Math.max(1000 - Math.min(1000, endLoad - _preview_startLoad), 300)
+		var difference = endLoad - startLoad
+		var minDelay = first_open ? 1000 : 300
+		var delay = minDelay - Math.min(minDelay, difference)
 		_preview.playLoop(delay / 1000, false, prvtime / 1000)
 	}
 	
@@ -142,7 +143,7 @@ function SongSelect(){
 	}
 	
 	this.createCode = function(){
-		assets.sounds["bgm_songsel"].playLoop(0, false, 0, 1.4423958333333333)
+		assets.sounds["bgm_songsel"].playLoop(0.1, false, 0, 1.442, 3.506)
 		assets.sounds["song-select"].play(0.2);
 		
 		var songElements = [0]
diff --git a/public/src/js/soundbuffer.js b/public/src/js/soundbuffer.js
index cd4279c..55879a1 100644
--- a/public/src/js/soundbuffer.js
+++ b/public/src/js/soundbuffer.js
@@ -124,7 +124,7 @@ class Sound{
 	playLoop(time, absolute, seek1, seek2, until){
 		time = this.convertTime(time, absolute)
 		seek1 = seek1 || 0
-		seek2 = seek2 || seek1
+		seek2 = seek2 || 0
 		until = until || this.duration
 		this.loop = {
 			started: time + until - seek1,
diff --git a/public/src/js/tutorial.js b/public/src/js/tutorial.js
index 9b9ee2e..725d0f4 100644
--- a/public/src/js/tutorial.js
+++ b/public/src/js/tutorial.js
@@ -2,7 +2,7 @@ function Tutorial() {
     var _this = this;
 
     this.run = function() {
-        assets.sounds["bgm_setsume"].playLoop(0, false, 0, 1.0540416666666668)
+        assets.sounds["bgm_setsume"].playLoop(0.1, false, 0, 1.054, 16.054)
 
         $('#tutorial-end-button').click(function(){
             assets.sounds["bgm_setsume"].stop();