diff --git a/src/main/java/device/Device.java b/src/main/java/device/Device.java
index 47162d9..66a376d 100644
--- a/src/main/java/device/Device.java
+++ b/src/main/java/device/Device.java
@@ -7,9 +7,14 @@ public interface Device {
 	int getVolume();
 	void next();
 	void prev();
+	//get deviceName, Album and current Item
 	String getInfoText();
+	//get a list of public methods
 	String[] getOptions();
-	String chooseOption();
+	//get an Item of the Album
+	String chooseItem(int itemNr);
+	// get the actual album
+	String getItemList();
 	String play();
 
 	}
diff --git a/src/main/java/device/cdPlayer/CDPlayer.java b/src/main/java/device/cdPlayer/CDPlayer.java
index b332775..e7c0ec5 100644
--- a/src/main/java/device/cdPlayer/CDPlayer.java
+++ b/src/main/java/device/cdPlayer/CDPlayer.java
@@ -73,7 +73,12 @@ public class CDPlayer implements Device {
     }
 
     @Override
-    public String chooseOption() {
+    public String chooseItem(int itemNr) {
+        return null;
+    }
+
+    @Override
+    public String getItemList() {
         return null;
     }
 
diff --git a/src/main/java/device/radioPlayer/RadioPlayer.java b/src/main/java/device/radioPlayer/RadioPlayer.java
index 6a6363d..f491dbc 100644
--- a/src/main/java/device/radioPlayer/RadioPlayer.java
+++ b/src/main/java/device/radioPlayer/RadioPlayer.java
@@ -157,10 +157,16 @@ public class RadioPlayer implements Device {
     }
 
     @Override
-    public String chooseOption() {
+    public String chooseItem(int itemNr) {
         return null;
     }
 
+    @Override
+    public String getItemList() {
+        return null;
+    }
+
+
     @Override
     public String play() {
         if (regionPlaylist.contains(playedStation))
diff --git a/src/main/java/device/usbPlayer/UsbPlayer.java b/src/main/java/device/usbPlayer/UsbPlayer.java
index 1856068..da599bc 100644
--- a/src/main/java/device/usbPlayer/UsbPlayer.java
+++ b/src/main/java/device/usbPlayer/UsbPlayer.java
@@ -151,10 +151,16 @@ public class UsbPlayer implements Device {
     }
 
     @Override
-    public String chooseOption() {
+    public String chooseItem(int itemNr) {
         return null;
     }
 
+    @Override
+    public String getItemList() {
+        return null;
+    }
+
+
     @Override
     public String play() {
         String result = "USB : ";