diff --git a/ASD_Task_4.depend b/ASD_Task_4.depend
index a544662..7b93fbe 100644
--- a/ASD_Task_4.depend
+++ b/ASD_Task_4.depend
@@ -19,3 +19,23 @@
 	"player.h"
 	<ctime>
 
+1583510555 source:d:\informatika\semester 2\struktur data\asd_task_4\list.cpp
+	"list.h"
+
+1583510480 d:\informatika\semester 2\struktur data\asd_task_4\list.h
+	<string>
+	<windows.h>
+	<iostream>
+
+1583511651 source:d:\informatika\semester 2\struktur data\asd_task_4\main.cpp
+	"player.h"
+	"list.h"
+	<conio.h>
+
+1582797920 d:\informatika\semester 2\struktur data\asd_task_4\player.h
+	"list.h"
+
+1583513579 source:d:\informatika\semester 2\struktur data\asd_task_4\player.cpp
+	"player.h"
+	<ctime>
+
diff --git a/ASD_Task_4.layout b/ASD_Task_4.layout
index 5ec49e7..5034f6b 100644
--- a/ASD_Task_4.layout
+++ b/ASD_Task_4.layout
@@ -2,29 +2,29 @@
 <CodeBlocks_layout_file>
 	<FileVersion major="1" minor="0" />
 	<ActiveTarget name="Debug" />
-	<File name="main.cpp" open="1" top="0" tabpos="1" split="0" active="1" splitpos="0" zoom_1="0" zoom_2="0">
+	<File name="player.cpp" open="1" top="0" tabpos="3" split="0" active="1" splitpos="0" zoom_1="0" zoom_2="0">
 		<Cursor>
-			<Cursor1 position="4763" topLine="177" />
+			<Cursor1 position="1900" topLine="51" />
 		</Cursor>
 	</File>
-	<File name="player.h" open="1" top="1" tabpos="5" split="0" active="1" splitpos="0" zoom_1="0" zoom_2="0">
+	<File name="list.cpp" open="1" top="0" tabpos="4" split="0" active="1" splitpos="0" zoom_1="0" zoom_2="0">
 		<Cursor>
-			<Cursor1 position="342" topLine="0" />
+			<Cursor1 position="2137" topLine="122" />
 		</Cursor>
 	</File>
-	<File name="list.cpp" open="1" top="0" tabpos="4" split="0" active="1" splitpos="0" zoom_1="0" zoom_2="0">
+	<File name="main.cpp" open="1" top="0" tabpos="1" split="0" active="1" splitpos="0" zoom_1="0" zoom_2="0">
 		<Cursor>
-			<Cursor1 position="2436" topLine="0" />
+			<Cursor1 position="279" topLine="27" />
 		</Cursor>
 	</File>
-	<File name="player.cpp" open="1" top="0" tabpos="3" split="0" active="1" splitpos="0" zoom_1="0" zoom_2="0">
+	<File name="player.h" open="1" top="0" tabpos="5" split="0" active="1" splitpos="0" zoom_1="0" zoom_2="0">
 		<Cursor>
-			<Cursor1 position="253" topLine="39" />
+			<Cursor1 position="168" topLine="0" />
 		</Cursor>
 	</File>
-	<File name="list.h" open="1" top="0" tabpos="2" split="0" active="1" splitpos="0" zoom_1="0" zoom_2="0">
+	<File name="list.h" open="1" top="1" tabpos="2" split="0" active="1" splitpos="0" zoom_1="0" zoom_2="0">
 		<Cursor>
-			<Cursor1 position="270" topLine="0" />
+			<Cursor1 position="705" topLine="24" />
 		</Cursor>
 	</File>
 </CodeBlocks_layout_file>
diff --git a/bin/Debug/ASD_Task_4.exe b/bin/Debug/ASD_Task_4.exe
new file mode 100644
index 0000000..eba13eb
Binary files /dev/null and b/bin/Debug/ASD_Task_4.exe differ
diff --git a/list.cpp b/list.cpp
index 847a957..6fc7e63 100644
--- a/list.cpp
+++ b/list.cpp
@@ -5,7 +5,7 @@ void createList(List &L) {
     * FS : first(L) diset Nil
     */
     //------------- YOUR CODE HERE -------------
-
+    first(L) = NULL;
     //----------------------------------------
 }
 
@@ -17,7 +17,10 @@ address allocate(infotype x) {
 
     address P = NULL;
     //------------- YOUR CODE HERE -------------
-
+    P = new elmlist;
+    info(P) = x;
+    next(P) = NULL;
+    prev(P) = NULL;
     //----------------------------------------
     return P;
 }
@@ -27,7 +30,7 @@ void deallocate(address &P) {
     * FS : menghapus elemen yang ditunjuk oleh P (delete)
     */
     //------------- YOUR CODE HERE -------------
-
+    delete P;
     //----------------------------------------
 }
 
@@ -37,7 +40,17 @@ void insertFirst(List &L, address P) {
     * FS : elemen yang ditunjuk P menjadi elemen pertama pada List L
     */
     //------------- YOUR CODE HERE -------------
-
+    if (first(L) != NULL){
+        next(P) = first(L);
+        prev(P) = prev(first(L));
+        next(prev(first(L))) = P;
+        prev(first(L)) = P;
+        first(L) = P;
+    } else {
+        first(L) = P;
+        next(P) = first(L);
+        prev(P) = P;
+    }
     //----------------------------------------
 }
 
@@ -47,7 +60,14 @@ void insertLast(List &L, address P) {
     * FS : elemen yang ditunjuk P menjadi elemen terakhir pada List L
     */
     //------------- YOUR CODE HERE -------------
-
+    if (first(L)==NULL){
+        insertFirst(L,P);
+    }else{
+        next(P) = first(L);
+        prev(P) = prev(first(L));
+        next(prev(first(L))) = P;
+        prev(first(L)) = P;
+    }
     //----------------------------------------
 }
 
@@ -60,9 +80,15 @@ address findElmByID(List L, infotype x) {
 
     address P = NULL;
     //------------- YOUR CODE HERE -------------
-
+    P = first(L);
+    do{
+        P = next(P);
+    } while( P != first(L)&& info(P).ID != x.ID);
+    if (info(P).ID == x.ID){
+        return P;
+    }
     //----------------------------------------
-    return P;
+    return NULL;
 }
 
 address findElmByName(List L, infotype x) {
@@ -74,9 +100,15 @@ address findElmByName(List L, infotype x) {
 
     address P = NULL;
     //------------- YOUR CODE HERE -------------
-
+    P = first(L);
+    do{
+        P = next(P);
+    } while( P != first(L) && info(P).name != x.name);
+    if (info(P).name == x.name){
+        return P;
+    }
     //----------------------------------------
-    return P;
+    return NULL;
 }
 
 void deleteFirst(List &L, address &P) {
@@ -85,7 +117,21 @@ void deleteFirst(List &L, address &P) {
     * FS : elemen pertama di dalam List L dilepas dan disimpan/ditunjuk oleh P
     */
     //------------- YOUR CODE HERE -------------
-
+    if (first(L)==NULL){
+        cout<<"List Kosong"<<endl;
+    }
+    P = first(L);
+    if (next(first(L))!= P){
+        first(L) = next(P);
+        next(prev(P)) = first(L);
+        prev(first(L)) = prev(P);
+        next(P) = NULL;
+        prev(P) = NULL;
+    } else {
+        next(P) = NULL;
+        prev(P) = NULL;
+        first(L) = NULL;
+    }
     //----------------------------------------
 }
 
@@ -95,7 +141,11 @@ void deleteLast(List &L, address &P) {
     * FS : elemen tarakhir di dalam List L dilepas dan disimpan/ditunjuk oleh P
     */
     //------------- YOUR CODE HERE -------------
-
+    P = prev(first(L));
+    next(prev(P))= first(L);
+    prev(first(L)) = prev(prev(P));
+    next(P) = NULL;
+    prev(P) = NULL;
     //----------------------------------------
 }
 
@@ -106,7 +156,14 @@ void insertAfter(List &L, address &Prec, address P) {
     *      ditunjuk pointer Prec
     */
     //------------- YOUR CODE HERE -------------
-
+    if (first(L) == NULL){
+        insertFirst(L,P);
+    } else {
+        next(P) = next(Prec);
+        prev(P) = Prec;
+        prev(next(Prec)) = P;
+        next(Prec) = P;
+    }
     //----------------------------------------
 
 }
@@ -117,7 +174,17 @@ void deleteAfter(List &L, address &Prec, address &P) {
     *      dan disimpan/ditunjuk oleh P
     */
     //------------- YOUR CODE HERE -------------
-
+    P = next(Prec);
+    if (next(Prec) != first(L)) {
+        next(Prec) = next(P);
+        prev(next(P)) = Prec;
+        next(P) = NULL;
+        prev(P) = NULL;
+    } else {
+        next(P) = NULL;
+        prev(P) = NULL;
+        P = NULL;
+    }
     //----------------------------------------
 }
 
diff --git a/list.h b/list.h
index 4468d0f..08a59e0 100644
--- a/list.h
+++ b/list.h
@@ -29,15 +29,15 @@ typedef struct elmlist *address;
 
 struct elmlist {
     //-------------  YOUR CODE HERE  -----------
-
-
+    infotype info;
+    address next;
+    address prev;
     //----------------------------------------
 };
 
 struct List {
     //-------------  YOUR CODE HERE  -----------
-
-
+    address first;
     //----------------------------------------
 };
 
diff --git a/main.cpp b/main.cpp
index a66a5c1..ceaf7a2 100644
--- a/main.cpp
+++ b/main.cpp
@@ -122,7 +122,8 @@ void runMenu(int menu) {
     case 2:
         // insert last music
         //------------- YOUR CODE HERE -------------
-        cout<<"UNDER MAIN TENIS"<<endl;
+        P = inputMusic();
+        insertLast(L,P);
         //input music
         //insertLast()
 
@@ -142,8 +143,9 @@ void runMenu(int menu) {
     case 5:
         // play last music
         //------------- YOUR CODE HERE -------------
-        cout<<"UNDER MAIN TENIS"<<endl;
-
+        P = prev(first(L));
+        playMusic(P);
+        cout<<"press enter";getche();
         //----------------------------------------
         break;
     case 6:
@@ -154,6 +156,8 @@ void runMenu(int menu) {
         P = findElmByName(L, x);
         if(P != NULL){
             cout<<"music found"<<endl;
+        } else {
+            cout<<"music not found"<<endl;
         }
         //----------------------------------------
         cout<<"press enter";getche();
@@ -161,20 +165,26 @@ void runMenu(int menu) {
     case 7:
         // search music by ID
         //------------- YOUR CODE HERE -------------
-        cout<<"UNDER MAIN TENIS"<<endl;
-
+        cout<<"input music ID : ";
+        cin>>x.ID;
+        P = findElmByID(L, x);
+        if(P != NULL){
+            cout<<"music found"<<endl;
+        } else {
+            cout<<"music not found"<<endl;
+        }
         //----------------------------------------
         cout<<"press enter";getche();
         break;
     case 8:
         // play current music
-        if(P!=NULL) {
+        if(P != NULL) {
             playMusic(P);
         }
         break;
     case 9:
         // play next music
-        if(P!=NULL) {
+        if(P != NULL) {
             P = next(P);
             playMusic(P);
         }
@@ -182,8 +192,10 @@ void runMenu(int menu) {
     case 10:
         // play previous music
         //------------- YOUR CODE HERE -------------
-        cout<<"UNDER MAIN TENIS"<<endl;
-
+        if(P != NULL) {
+            P = prev(P);
+            playMusic(P);
+        }
         //----------------------------------------
         break;
     case 11:
diff --git a/obj/Debug/list.o b/obj/Debug/list.o
new file mode 100644
index 0000000..7afbf8e
Binary files /dev/null and b/obj/Debug/list.o differ
diff --git a/obj/Debug/main.o b/obj/Debug/main.o
new file mode 100644
index 0000000..3a05413
Binary files /dev/null and b/obj/Debug/main.o differ
diff --git a/obj/Debug/player.o b/obj/Debug/player.o
new file mode 100644
index 0000000..43f8715
Binary files /dev/null and b/obj/Debug/player.o differ
diff --git a/player.cpp b/player.cpp
index 31ef288..0589e47 100644
--- a/player.cpp
+++ b/player.cpp
@@ -43,9 +43,25 @@ void shuffleList(List &L) {
     * FS : isi (elemen) dari list teracak
     */
     //------------- YOUR CODE HERE -------------
-
-        cout<<"UNDER MAIN TENIS"<<endl;
-
+    address P = first(L);
+    int panjang = 0;
+    do {
+        P = next(P);
+        panjang++;
+    } while (P != first(L));
+    while (panjang > 0) {
+        P = first(L);
+        int i = randomInt(panjang);
+        while (i != 0){
+            P = next(P);
+            i--;
+        }
+        address Q = P;
+        deleteAfter(L,prev(P),Q);
+        insertFirst(L,Q);
+        panjang--;
+    }
+    cout<<"Shuffle Done"<<endl;
     //----------------------------------------
 }
 
@@ -55,9 +71,13 @@ void playRepeat(List &L, int n) {
     *      dari lagu pertama hingga terakhir sebanyak n kali
     */
     //------------- YOUR CODE HERE -------------
-
-        cout<<"UNDER MAIN TENIS"<<endl;
-
+    address P = first(L);
+    for (int i = 0; i < n; i++){
+        do{
+            playMusic(P);
+            P = next(P);
+        } while (P != first(L));
+    }
     //----------------------------------------
 }
 
@@ -69,9 +89,19 @@ void deleteMusicByID(List &L, infotype x) {
     * FS : elemen dengan ID yang dicari dideallocate
     */
     //------------- YOUR CODE HERE -------------
-
-        cout<<"UNDER MAIN TENIS"<<endl;
-
+    address P,Q;
+    Q = findElmByID(L,x);
+    if(Q == NULL){
+        cout<<"music not found"<<endl;
+    } else if (Q == first(L)){
+        deleteFirst(L,P);
+        deallocate(P);
+        cout<<"delete music success"<<endl;
+    } else if (Q != NULL){
+        deleteAfter(L, prev(Q), P);
+        deallocate(P);
+        cout<<"delete music success"<<endl;
+    }
     //----------------------------------------
 
 }