diff --git a/src/main/java/viper/DataManager.java b/src/main/java/viper/DataManager.java
index 54264ed..83095ec 100644
--- a/src/main/java/viper/DataManager.java
+++ b/src/main/java/viper/DataManager.java
@@ -1,118 +1,122 @@
-package viper;
-
-import org.bukkit.configuration.file.FileConfiguration;
-import org.bukkit.configuration.file.YamlConfiguration;
-
-import java.io.File;
-import java.io.IOException;
-import java.util.ArrayList;
-import java.util.List;
-import java.util.Set;
-
-public class DataManager {
-    private final ButtonControl plugin;
-    private FileConfiguration data;
-    private File dataFile;
-
-    public DataManager(ButtonControl plugin) {
-        this.plugin = plugin;
-        loadData();
-    }
-
-    private void loadData() {
-        dataFile = new File(plugin.getDataFolder(), "data.yml");
-        if (!dataFile.exists()) {
-            plugin.saveResource("data.yml", false);
-        }
-        data = YamlConfiguration.loadConfiguration(dataFile);
-    }
-
-    // --- Spielerbasierte Methoden ---
-
-    public List<String> getConnectedBlocks(String playerUUID, String buttonId) {
-        return data.getStringList("players." + playerUUID + ".buttons." + buttonId);
-    }
-
-    public void setConnectedBlocks(String playerUUID, String buttonId, List<String> blocks) {
-        data.set("players." + playerUUID + ".buttons." + buttonId, blocks);
-        saveData();
-    }
-
-    public void addPlacedController(String playerUUID, String location, String buttonId) {
-        data.set("players." + playerUUID + ".placed-controllers." + location, buttonId);
-        saveData();
-    }
-
-    public String getButtonIdForPlacedController(String playerUUID, String location) {
-        return data.getString("players." + playerUUID + ".placed-controllers." + location);
-    }
-
-    public void removePlacedController(String playerUUID, String location) {
-        data.set("players." + playerUUID + ".placed-controllers." + location, null);
-        saveData();
-    }
-
-    public List<String> getAllPlacedControllers(String playerUUID) {
-        if (data.getConfigurationSection("players." + playerUUID + ".placed-controllers") == null) {
-            return new ArrayList<>();
-        }
-        Set<String> keys = data.getConfigurationSection("players." + playerUUID + ".placed-controllers").getKeys(false);
-        return new ArrayList<>(keys);
-    }
-
-    // --- Neue globale Methoden für Tageslichtsensoren etc. ---
-
-    /**
-     * Gibt alle Controller-Orte aller Spieler zurück (global).
-     * Nützlich für Tageslichtsensoren.
-     */
-    public List<String> getAllPlacedControllers() {
-        List<String> allControllers = new ArrayList<>();
-        if (data.getConfigurationSection("players") == null) {
-            return allControllers;
-        }
-        Set<String> players = data.getConfigurationSection("players").getKeys(false);
-        for (String playerUUID : players) {
-            allControllers.addAll(getAllPlacedControllers(playerUUID));
-        }
-        return allControllers;
-    }
-
-    /**
-     * Holt die Button-ID für einen platzierten Controller an einem Ort, ohne Spieler-UUID (global).
-     * Da Controller pro Spieler gespeichert sind, suchen wir alle Spieler ab.
-     */
-    public String getButtonIdForPlacedController(String location) {
-        if (data.getConfigurationSection("players") == null) return null;
-        Set<String> players = data.getConfigurationSection("players").getKeys(false);
-        for (String playerUUID : players) {
-            String buttonId = getButtonIdForPlacedController(playerUUID, location);
-            if (buttonId != null) return buttonId;
-        }
-        return null;
-    }
-
-    /**
-     * Holt die verbundenen Blöcke für eine Button-ID (global).
-     * Da die verbundenen Blöcke pro Spieler gespeichert sind, suchen wir alle Spieler ab.
-     */
-    public List<String> getConnectedBlocks(String buttonId) {
-        if (data.getConfigurationSection("players") == null) return null;
-        Set<String> players = data.getConfigurationSection("players").getKeys(false);
-        for (String playerUUID : players) {
-            List<String> connected = getConnectedBlocks(playerUUID, buttonId);
-            if (connected != null && !connected.isEmpty()) {
-                return connected;
-            }
-        }
-        return null;
-    }
-
-    public void saveData() {
-        try {
-            data.save(dataFile);
-        } catch (IOException e) {
-            plugin.getLogger().severe("Konnte data.yml nicht speichern: " + e.getMessage());
-        }
-    }
-}
+package viper;
+
+import org.bukkit.configuration.file.FileConfiguration;
+import org.bukkit.configuration.file.YamlConfiguration;
+
+import java.io.File;
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Set;
+import java.util.UUID;
+
+public class DataManager {
+    private final ButtonControl plugin;
+    private FileConfiguration data;
+    private File dataFile;
+
+    public DataManager(ButtonControl plugin) {
+        this.plugin = plugin;
+        loadData();
+    }
+
+    private void loadData() {
+        dataFile = new File(plugin.getDataFolder(), "data.yml");
+        if (!dataFile.exists()) {
+            plugin.saveResource("data.yml", false);
+        }
+        data = YamlConfiguration.loadConfiguration(dataFile);
+    }
+
+    public void reloadData() {
+        data = YamlConfiguration.loadConfiguration(dataFile);
+    }
+
+    // --- Spielerbasierte Methoden ---
+
+    public List<String> getConnectedBlocks(String playerUUID, String buttonId) {
+        return data.getStringList("players." + playerUUID + ".buttons." + buttonId);
+    }
+
+    public void setConnectedBlocks(String playerUUID, String buttonId, List<String> blocks) {
+        data.set("players." + playerUUID + ".buttons." + buttonId, blocks);
+        saveData();
+    }
+
+    public void addPlacedController(String playerUUID, String location, String buttonId) {
+        data.set("players." + playerUUID + ".placed-controllers." + location, buttonId);
+        saveData();
+    }
+
+    public String getButtonIdForPlacedController(String playerUUID, String location) {
+        return data.getString("players." + playerUUID + ".placed-controllers." + location);
+    }
+
+    public void removePlacedController(String playerUUID, String location) {
+        data.set("players." + playerUUID + ".placed-controllers." + location, null);
+        saveData();
+    }
+
+    public List<String> getAllPlacedControllers(String playerUUID) {
+        if (data.getConfigurationSection("players." + playerUUID + ".placed-controllers") == null) {
+            return new ArrayList<>();
+        }
+        Set<String> keys = data.getConfigurationSection("players." + playerUUID + ".placed-controllers").getKeys(false);
+        return new ArrayList<>(keys);
+    }
+
+    // --- Neue globale Methoden für Tageslichtsensoren etc. ---
+
+    public List<String> getAllPlacedControllers() {
+        List<String> allControllers = new ArrayList<>();
+        if (data.getConfigurationSection("players") == null) {
+            return allControllers;
+        }
+        Set<String> players = data.getConfigurationSection("players").getKeys(false);
+        for (String playerUUID : players) {
+            allControllers.addAll(getAllPlacedControllers(playerUUID));
+        }
+        return allControllers;
+    }
+
+    public String getButtonIdForPlacedController(String location) {
+        if (data.getConfigurationSection("players") == null) return null;
+        Set<String> players = data.getConfigurationSection("players").getKeys(false);
+        for (String playerUUID : players) {
+            String buttonId = getButtonIdForPlacedController(playerUUID, location);
+            if (buttonId != null) return buttonId;
+        }
+        return null;
+    }
+
+    public List<String> getConnectedBlocks(String buttonId) {
+        if (data.getConfigurationSection("players") == null) return null;
+        Set<String> players = data.getConfigurationSection("players").getKeys(false);
+        for (String playerUUID : players) {
+            List<String> connected = getConnectedBlocks(playerUUID, buttonId);
+            if (connected != null && !connected.isEmpty()) {
+                return connected;
+            }
+        }
+        return null;
+    }
+
+    // --- Notenblock-Instrument Methoden ---
+
+    public void setPlayerInstrument(UUID playerUUID, String instrument) {
+        data.set("players." + playerUUID.toString() + ".instrument", instrument);
+        saveData();
+    }
+
+    public String getPlayerInstrument(UUID playerUUID) {
+        return data.getString("players." + playerUUID.toString() + ".instrument");
+    }
+
+    public void saveData() {
+        try {
+            data.save(dataFile);
+        } catch (IOException e) {
+            plugin.getLogger().severe("Konnte data.yml nicht speichern: " + e.getMessage());
+        }
+    }
+}
\ No newline at end of file