diff --git a/public/audio/beach/갈대마디.mp3 b/public/audio-third-trip/beach/갈대마디.mp3
similarity index 100%
rename from public/audio/beach/갈대마디.mp3
rename to public/audio-third-trip/beach/갈대마디.mp3
diff --git a/public/audio/beach/나무다리건너.mp3 b/public/audio-third-trip/beach/나무다리건너.mp3
similarity index 100%
rename from public/audio/beach/나무다리건너.mp3
rename to public/audio-third-trip/beach/나무다리건너.mp3
diff --git a/public/audio-third-trip/beach/낙엽.mp3 b/public/audio-third-trip/beach/낙엽.mp3
new file mode 100644
index 0000000..c539c2d
Binary files /dev/null and b/public/audio-third-trip/beach/낙엽.mp3 differ
diff --git a/public/audio/beach/달팽이종소리.mp3 b/public/audio-third-trip/beach/달팽이종소리.mp3
similarity index 100%
rename from public/audio/beach/달팽이종소리.mp3
rename to public/audio-third-trip/beach/달팽이종소리.mp3
diff --git a/public/audio/beach/모래놀이.mp3 b/public/audio-third-trip/beach/모래놀이.mp3
similarity index 100%
rename from public/audio/beach/모래놀이.mp3
rename to public/audio-third-trip/beach/모래놀이.mp3
diff --git a/public/audio/beach/물소리.mp3 b/public/audio-third-trip/beach/물소리.mp3
similarity index 100%
rename from public/audio/beach/물소리.mp3
rename to public/audio-third-trip/beach/물소리.mp3
diff --git a/public/audio-third-trip/beach/물장구.mp3 b/public/audio-third-trip/beach/물장구.mp3
new file mode 100644
index 0000000..04f1fb7
Binary files /dev/null and b/public/audio-third-trip/beach/물장구.mp3 differ
diff --git a/public/audio/beach/바람불어오는.mp3 b/public/audio-third-trip/beach/바람불어오는.mp3
similarity index 100%
rename from public/audio/beach/바람불어오는.mp3
rename to public/audio-third-trip/beach/바람불어오는.mp3
diff --git a/public/audio/beach/변했데.mp3 b/public/audio-third-trip/beach/변했데.mp3
similarity index 100%
rename from public/audio/beach/변했데.mp3
rename to public/audio-third-trip/beach/변했데.mp3
diff --git a/public/audio/beach/북+하모니카.mp3 b/public/audio-third-trip/beach/북+하모니카.mp3
similarity index 100%
rename from public/audio/beach/북+하모니카.mp3
rename to public/audio-third-trip/beach/북+하모니카.mp3
diff --git a/public/audio/beach/안녕이름들.mp3 b/public/audio-third-trip/beach/안녕이름들.mp3
similarity index 100%
rename from public/audio/beach/안녕이름들.mp3
rename to public/audio-third-trip/beach/안녕이름들.mp3
diff --git a/public/audio/beach/하모니카.mp3 b/public/audio-third-trip/beach/하모니카.mp3
similarity index 100%
rename from public/audio/beach/하모니카.mp3
rename to public/audio-third-trip/beach/하모니카.mp3
diff --git a/public/audio-third-trip/beach/합주.mp3 b/public/audio-third-trip/beach/합주.mp3
new file mode 100644
index 0000000..07638ca
Binary files /dev/null and b/public/audio-third-trip/beach/합주.mp3 differ
diff --git a/public/audio/beach/흥얼거림.mp3 b/public/audio-third-trip/beach/흥얼거림.mp3
similarity index 100%
rename from public/audio/beach/흥얼거림.mp3
rename to public/audio-third-trip/beach/흥얼거림.mp3
diff --git a/public/audio-third-trip/clap@2/01.mp3 b/public/audio-third-trip/clap@2/01.mp3
new file mode 100644
index 0000000..8019a14
Binary files /dev/null and b/public/audio-third-trip/clap@2/01.mp3 differ
diff --git a/public/audio-third-trip/clap@2/02.mp3 b/public/audio-third-trip/clap@2/02.mp3
new file mode 100644
index 0000000..745dca0
Binary files /dev/null and b/public/audio-third-trip/clap@2/02.mp3 differ
diff --git a/public/audio/beach/귀요미물소리.mp3 b/public/audio/beach/귀요미물소리.mp3
new file mode 100644
index 0000000..70b8ab9
Binary files /dev/null and b/public/audio/beach/귀요미물소리.mp3 differ
diff --git a/public/audio/beach/나무리듬.mp3 b/public/audio/beach/나무리듬.mp3
new file mode 100644
index 0000000..a706a14
Binary files /dev/null and b/public/audio/beach/나무리듬.mp3 differ
diff --git a/public/audio/beach/낙엽.mp3 b/public/audio/beach/낙엽.mp3
index c539c2d..474199d 100644
Binary files a/public/audio/beach/낙엽.mp3 and b/public/audio/beach/낙엽.mp3 differ
diff --git a/public/audio/beach/모래던지기.mp3 b/public/audio/beach/모래던지기.mp3
new file mode 100644
index 0000000..14729ec
Binary files /dev/null and b/public/audio/beach/모래던지기.mp3 differ
diff --git a/public/audio/beach/물방울.mp3 b/public/audio/beach/물방울.mp3
new file mode 100644
index 0000000..7d96094
Binary files /dev/null and b/public/audio/beach/물방울.mp3 differ
diff --git a/public/audio/beach/물장구.mp3 b/public/audio/beach/물장구.mp3
index 04f1fb7..f8a6a98 100644
Binary files a/public/audio/beach/물장구.mp3 and b/public/audio/beach/물장구.mp3 differ
diff --git a/public/audio/beach/바람개비.mp3 b/public/audio/beach/바람개비.mp3
new file mode 100644
index 0000000..7d16220
Binary files /dev/null and b/public/audio/beach/바람개비.mp3 differ
diff --git a/public/audio/beach/뻐꾸기웃음.mp3 b/public/audio/beach/뻐꾸기웃음.mp3
new file mode 100644
index 0000000..96d7dd1
Binary files /dev/null and b/public/audio/beach/뻐꾸기웃음.mp3 differ
diff --git a/public/audio/beach/사람들.mp3 b/public/audio/beach/사람들.mp3
new file mode 100644
index 0000000..6295017
Binary files /dev/null and b/public/audio/beach/사람들.mp3 differ
diff --git a/public/audio/beach/새소리.mp3 b/public/audio/beach/새소리.mp3
new file mode 100644
index 0000000..59db58b
Binary files /dev/null and b/public/audio/beach/새소리.mp3 differ
diff --git a/public/audio/beach/이름들.mp3 b/public/audio/beach/이름들.mp3
new file mode 100644
index 0000000..1c9cc10
Binary files /dev/null and b/public/audio/beach/이름들.mp3 differ
diff --git a/public/audio/beach/일이삼사.mp3 b/public/audio/beach/일이삼사.mp3
new file mode 100644
index 0000000..4e46d23
Binary files /dev/null and b/public/audio/beach/일이삼사.mp3 differ
diff --git a/public/audio/beach/하모니카와멜로디온.mp3 b/public/audio/beach/하모니카와멜로디온.mp3
new file mode 100644
index 0000000..983b403
Binary files /dev/null and b/public/audio/beach/하모니카와멜로디온.mp3 differ
diff --git a/public/audio/beach/합주.mp3 b/public/audio/beach/합주.mp3
index 07638ca..0553028 100644
Binary files a/public/audio/beach/합주.mp3 and b/public/audio/beach/합주.mp3 differ
diff --git a/public/conductor/index.js b/public/conductor/index.js
index 6bad9b3..673745e 100644
--- a/public/conductor/index.js
+++ b/public/conductor/index.js
@@ -25,21 +25,21 @@ $(document).ready(function() {
     //clap
     AudioImport_p5("./audio/clap@2/" + ("0" + getRandomInt(1, 2)).slice(-2) + ".mp3"),
     //beach_sounds page 1 ==> 7
-    AudioImport("./audio/beach/북+하모니카.mp3"),
     AudioImport("./audio/beach/합주.mp3"),
     AudioImport("./audio/beach/낙엽.mp3"),
-    AudioImport("./audio/beach/변했데.mp3"),
+    AudioImport("./audio/beach/새소리.mp3"),
     AudioImport("./audio/beach/물장구.mp3"),
-    AudioImport("./audio/beach/흥얼거림.mp3"),
-    AudioImport("./audio/beach/모래놀이.mp3"),
+    AudioImport("./audio/beach/이름들.mp3"),
+    AudioImport("./audio/beach/물방울.mp3"),
+    AudioImport("./audio/beach/사람들.mp3"),
     //beach_sounds page 2 ==> 7
-    AudioImport("./audio/beach/물소리.mp3"),
-    AudioImport("./audio/beach/하모니카.mp3"),
-    AudioImport("./audio/beach/갈대마디.mp3"),
-    AudioImport("./audio/beach/바람불어오는.mp3"),
-    AudioImport("./audio/beach/달팽이종소리.mp3"),
-    AudioImport("./audio/beach/나무다리건너.mp3"),
-    AudioImport("./audio/beach/안녕이름들.mp3"),
+    AudioImport("./audio/beach/나무리듬.mp3"),
+    AudioImport("./audio/beach/바람개비.mp3"),
+    AudioImport("./audio/beach/일이삼사.mp3"),
+    AudioImport("./audio/beach/뻐꾸기웃음.mp3"),
+    AudioImport("./audio/beach/모래던지기.mp3"),
+    AudioImport("./audio/beach/귀요미물소리.mp3"),
+    AudioImport("./audio/beach/하모니카와멜로디온.mp3"),
     //
   ]).then(function(imports) {
     //imgs
@@ -55,37 +55,37 @@ $(document).ready(function() {
     //beach list
     //NOTE: beware! same key is not allowed!! every keys should have different name!!
     var beach_sounds = {
-      '북하모니': imports[8],
-      '합주': imports[9],
-      '낙엽': imports[10],
-      '변했데': imports[11],
-      '물장구': imports[12],
-      '흥얼': imports[13],
-      '모래놀이': imports[14],
-      '물소리': imports[15],
-      '하모니카': imports[16],
-      '갈대마디': imports[17],
-      '바람': imports[18],
-      '달팽이': imports[19],
-      '나무다리': imports[20],
-      '이름': imports[21],
+      '합주' : imports[8],
+      '낙엽' : imports[9],
+      '새소리' : imports[10],
+      '물장구' : imports[11],
+      '이름들' : imports[12],
+      '물방울' : imports[13],
+      '사람들' : imports[14],
+      '나무리듬' : imports[15],
+      '바람개비' : imports[16],
+      '일이삼사' : imports[17],
+      '뻐꾸기웃음' : imports[18],
+      '모래던지기' : imports[19],
+      '귀요미물소리' : imports[20],
+      '하모니카와멜로디온' : imports[21],
     };
     //NOTE: beware! same key is not allowed!! every keys should have different name!!
     var beach_players = {
-      '북하모니': [],
       '합주': [],
       '낙엽': [],
-      '변했데': [],
+      '새소리': [],
       '물장구': [],
-      '흥얼': [],
-      '모래놀이': [],
-      '물소리': [],
-      '하모니카': [],
-      '갈대마디': [],
-      '바람': [],
-      '달팽이': [],
-      '나무다리': [],
-      '이름': [],
+      '이름들': [],
+      '물방울': [],
+      '사람들': [],
+      '나무리듬': [],
+      '바람개비': [],
+      '일이삼사': [],
+      '뻐꾸기웃음': [],
+      '모래던지기': [],
+      '귀요미물소리': [],
+      '하모니카와멜로디온': [],
     };
 
     //screen changer
diff --git a/public/index.js b/public/index.js
index c720ab3..bc15eeb 100644
--- a/public/index.js
+++ b/public/index.js
@@ -25,21 +25,21 @@ $(document).ready(function() {
     //clap
     AudioImport_p5("./audio/clap@2/" + ("0" + getRandomInt(1, 2)).slice(-2) + ".mp3"),
     //beach_sounds page 1 ==> 7
-    AudioImport("./audio/beach/북+하모니카.mp3"),
     AudioImport("./audio/beach/합주.mp3"),
     AudioImport("./audio/beach/낙엽.mp3"),
-    AudioImport("./audio/beach/변했데.mp3"),
+    AudioImport("./audio/beach/새소리.mp3"),
     AudioImport("./audio/beach/물장구.mp3"),
-    AudioImport("./audio/beach/흥얼거림.mp3"),
-    AudioImport("./audio/beach/모래놀이.mp3"),
+    AudioImport("./audio/beach/이름들.mp3"),
+    AudioImport("./audio/beach/물방울.mp3"),
+    AudioImport("./audio/beach/사람들.mp3"),
     //beach_sounds page 2 ==> 7
-    AudioImport("./audio/beach/물소리.mp3"),
-    AudioImport("./audio/beach/하모니카.mp3"),
-    AudioImport("./audio/beach/갈대마디.mp3"),
-    AudioImport("./audio/beach/바람불어오는.mp3"),
-    AudioImport("./audio/beach/달팽이종소리.mp3"),
-    AudioImport("./audio/beach/나무다리건너.mp3"),
-    AudioImport("./audio/beach/안녕이름들.mp3"),
+    AudioImport("./audio/beach/나무리듬.mp3"),
+    AudioImport("./audio/beach/바람개비.mp3"),
+    AudioImport("./audio/beach/일이삼사.mp3"),
+    AudioImport("./audio/beach/뻐꾸기웃음.mp3"),
+    AudioImport("./audio/beach/모래던지기.mp3"),
+    AudioImport("./audio/beach/귀요미물소리.mp3"),
+    AudioImport("./audio/beach/하모니카와멜로디온.mp3"),
     //
   ]).then(function(imports) {
     //imgs
@@ -55,54 +55,54 @@ $(document).ready(function() {
     //beach list
     //NOTE: beware! same key is not allowed!! every keys should have different name!!
     var beach_sounds = {
-      '북하모니': imports[8],
-      '합주': imports[9],
-      '낙엽': imports[10],
-      '변했데': imports[11],
-      '물장구': imports[12],
-      '흥얼': imports[13],
-      '모래놀이': imports[14],
-      '물소리': imports[15],
-      '하모니카': imports[16],
-      '갈대마디': imports[17],
-      '바람': imports[18],
-      '달팽이': imports[19],
-      '나무다리': imports[20],
-      '이름': imports[21],
+      '합주' : imports[8],
+      '낙엽' : imports[9],
+      '새소리' : imports[10],
+      '물장구' : imports[11],
+      '이름들' : imports[12],
+      '물방울' : imports[13],
+      '사람들' : imports[14],
+      '나무리듬' : imports[15],
+      '바람개비' : imports[16],
+      '일이삼사' : imports[17],
+      '뻐꾸기웃음' : imports[18],
+      '모래던지기' : imports[19],
+      '귀요미물소리' : imports[20],
+      '하모니카와멜로디온' : imports[21],
     };
     //NOTE: beware! same key is not allowed!! every keys should have different name!!
     var beach_players = {
-      '북하모니': [],
       '합주': [],
       '낙엽': [],
-      '변했데': [],
+      '새소리': [],
       '물장구': [],
-      '흥얼': [],
-      '모래놀이': [],
-      '물소리': [],
-      '하모니카': [],
-      '갈대마디': [],
-      '바람': [],
-      '달팽이': [],
-      '나무다리': [],
-      '이름': [],
+      '이름들': [],
+      '물방울': [],
+      '사람들': [],
+      '나무리듬': [],
+      '바람개비': [],
+      '일이삼사': [],
+      '뻐꾸기웃음': [],
+      '모래던지기': [],
+      '귀요미물소리': [],
+      '하모니카와멜로디온': [],
     };
     //NOTE: beware! same key is not allowed!! every keys should have different name!!
     var beach_playcounts = {
-      '북하모니': 0,
       '합주': 0,
       '낙엽': 0,
-      '변했데': 0,
+      '새소리': 0,
       '물장구': 0,
-      '흥얼': 0,
-      '모래놀이': 0,
-      '물소리': 0,
-      '하모니카': 0,
-      '갈대마디': 0,
-      '바람': 0,
-      '달팽이': 0,
-      '나무다리': 0,
-      '이름': 0,
+      '이름들': 0,
+      '물방울': 0,
+      '사람들': 0,
+      '나무리듬': 0,
+      '바람개비': 0,
+      '일이삼사': 0,
+      '뻐꾸기웃음': 0,
+      '모래던지기': 0,
+      '귀요미물소리': 0,
+      '하모니카와멜로디온': 0,
     };
 
     //screen changer