diff --git a/Music Player.meta b/Music Player.meta
new file mode 100644
index 0000000..7f1d97e
--- /dev/null
+++ b/Music Player.meta	
@@ -0,0 +1,8 @@
+fileFormatVersion: 2
+guid: be53b5399a162714babbb23c9db40b9b
+folderAsset: yes
+DefaultImporter:
+  externalObjects: {}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 
diff --git a/Music Player/Editor.meta b/Music Player/Editor.meta
new file mode 100644
index 0000000..b36d0c9
--- /dev/null
+++ b/Music Player/Editor.meta	
@@ -0,0 +1,8 @@
+fileFormatVersion: 2
+guid: faf352127d53f224da7f41d14735821a
+folderAsset: yes
+DefaultImporter:
+  externalObjects: {}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 
diff --git a/Music Player/Editor/MusicPlayer.cs b/Music Player/Editor/MusicPlayer.cs
new file mode 100644
index 0000000..f7b08d4
--- /dev/null
+++ b/Music Player/Editor/MusicPlayer.cs	
@@ -0,0 +1,172 @@
+#if UNITY_EDITOR
+using UnityEngine;
+using System.Collections.Generic;
+using VRC.SDK3.Avatars.ScriptableObjects;
+using nadena.dev.ndmf;
+using gay.lilyy.MusicPlayer.Editor;
+using AnimatorAsCode.V1;
+using VRC.SDK3.Avatars.Components;
+using AnimatorAsCode.V1.ModularAvatar;
+using UnityEditor;
+using AnimatorAsCode.V1.VRC;
+using NUnit.Framework.Constraints;
+using System.Linq;
+using System.Threading.Tasks;
+
+[assembly: ExportsPlugin(typeof(MusicPlayerPlugin))]
+
+namespace gay.lilyy.MusicPlayer.Editor
+{
+    public class MusicPlayerPlugin : Plugin<MusicPlayerPlugin>
+    {
+        public override string QualifiedName => "gay.lilyy.MusicPlayer";
+        public override string DisplayName => "Music Player";
+
+        private const string SystemName = "MusicPlayer";
+        private const bool UseWriteDefaults = true;
+        protected override void Configure()
+        {
+            InPhase(BuildPhase.Generating).Run($"Generate {DisplayName}", Generate);
+        }
+        private void Generate(BuildContext ctx)
+        {
+            // Find all components of type ExampleToggle in this avatar.
+            var songs = ctx.AvatarRootTransform.GetComponentsInChildren<MusicPlayerSong>();
+            if (songs.Length == 0) return; // If there are none in the avatar, skip this entirely.
+
+            var songGo = songs[0].gameObject;
+            List<int> usedIndexes = new List<int>();
+
+            foreach (var song in songs)
+            {
+                if (song.gameObject != songGo)
+                {
+                    throw new System.Exception("All MusicPlayerSong components must be on the same GameObject.");
+                }
+                if (usedIndexes.Contains(song.TrackNumber))
+                {
+                    throw new System.Exception($"${song.Name} is using a duplicate track number: ${song.TrackNumber}");
+                }
+            }
+
+            var audioSource = songGo.GetComponent<AudioSource>();
+            // INSERT_YOUR_CODE
+            // Ensure all track numbers from 1 to max are present
+            int minTrackNumber = songs.Min(song => song.TrackNumber);
+            if (minTrackNumber < 1) {
+                throw new System.Exception("Track numbers are 1 and up");
+            }
+            int maxTrackNumber = songs.Max(song => song.TrackNumber);
+            HashSet<int> trackNumbers = new HashSet<int>(songs.Select(song => song.TrackNumber));
+            for (int i = 1; i <= maxTrackNumber; i++)
+            {
+                if (!trackNumbers.Contains(i))
+                {
+                    throw new System.Exception($"Missing track number: {i}. All track numbers from 1 to {maxTrackNumber} must be filled.");
+                }
+            }
+
+
+
+            // Initialize Animator As Code.
+            var modularAvatar = MaAc.Create(new GameObject(SystemName)
+            {
+                transform = { parent = ctx.AvatarRootTransform }
+            });
+
+
+            var controller = CreateController(ctx, modularAvatar, songs, audioSource);
+
+
+            // Create a new object in the scene. We will add Modular Avatar components inside it.
+
+            // By creating a Modular Avatar Merge Animator component,
+            // our animator controller will be added to the avatar's FX layer.
+            modularAvatar.NewMergeAnimator(controller.AnimatorController, VRCAvatarDescriptor.AnimLayerType.FX);
+            Debug.Log("Added music player");
+        }
+
+        private AacFlController CreateController(BuildContext ctx, MaAc modularAvatar, MusicPlayerSong[] songs, AudioSource audioSource)
+        {
+            var aac = AacV1.Create(new AacConfiguration
+            {
+                SystemName = SystemName,
+                AnimatorRoot = ctx.AvatarRootTransform,
+                DefaultValueRoot = ctx.AvatarRootTransform,
+                AssetKey = GUID.Generate().ToString(),
+                AssetContainer = ctx.AssetContainer,
+                ContainerMode = AacConfiguration.Container.OnlyWhenPersistenceRequired,
+                // (For AAC 1.2.0 and above) The next line is recommended starting from NDMF 1.6.0.
+                // If you use a lower version of NDMF or if you don't use it, remove that line.
+                AssetContainerProvider = new NDMFContainerProvider(ctx),
+                // States will be created with Write Defaults set to ON or OFF based on whether UseWriteDefaults is true or false.
+                DefaultsProvider = new AacDefaultsProvider(UseWriteDefaults)
+            });
+            // Create a new animator controller.
+            // This will be merged with the rest of the playable layer at the end of this function.
+            var controller = aac.NewAnimatorController();
+            
+            CreatePlayerLayer(controller, modularAvatar, songs, audioSource);
+            CreateVolumeLayer(aac, controller, modularAvatar, audioSource);
+
+            return controller;
+        }
+
+        private void CreatePlayerLayer(AacFlController controller, MaAc modularAvatar, MusicPlayerSong[] songs, AudioSource audioSource)
+        {
+            var playerLayer = controller.NewLayer("Player");
+            var songIndexParam = playerLayer.IntParameter("SongIndex");
+            modularAvatar.NewParameter(songIndexParam).NotSaved();
+            var isLocal = playerLayer.BoolParameter("IsLocal");
+
+            var nonLocalState = playerLayer.NewState("NonLocal");
+            var idleState = playerLayer.NewState("Idle");
+
+            nonLocalState.TransitionsTo(idleState).When(isLocal.IsEqualTo(true));
+            // will never appear ingame, useful for testing
+            idleState.TransitionsTo(nonLocalState).When(isLocal.IsEqualTo(false));
+
+            foreach (var song in songs)
+            {
+                var songState = playerLayer.NewState($"Song ${song.Name}");
+                
+                songState.TransitionsTo(idleState).When(songIndexParam.IsNotEqualTo(song.TrackNumber));
+                // again, will never happen ingame. still useful
+                songState.TransitionsTo(nonLocalState).When(isLocal.IsEqualTo(false));
+                idleState.TransitionsTo(songState).When(songIndexParam.IsEqualTo(song.TrackNumber));
+                songState.Audio(audioSource, (audio) =>
+                {
+                    
+                    audio.SelectsClip(0, new List<AudioClip> { song.song }.ToArray() );
+                    audio.StopsPlayingOnExit();
+                    audio.StartsPlayingOnEnter();
+                });
+            }
+        }
+        private void CreateVolumeLayer(AacFlBase aac, AacFlController controller, MaAc modularAvatar, AudioSource audioSource) {
+            var songVolumeLayer = controller.NewLayer("Volume");
+            var volumeParam = songVolumeLayer.FloatParameter("volume");
+            modularAvatar.NewParameter(volumeParam).WithDefaultValue(0.01f);
+
+            var clip = aac.NewClip().Animating((action) => {
+                var animate = action.Animates(audioSource, "m_Volume");
+                animate.WithSecondsUnit((seconds) => {
+                    seconds.Linear(0, 0);
+                    seconds.Linear(1, 1);
+                });
+            });
+            var state = songVolumeLayer.NewState("Volume");
+            state.WithAnimation(clip).WithMotionTime(volumeParam);
+        }
+    }
+
+    internal class NDMFContainerProvider : IAacAssetContainerProvider
+    {
+        private readonly BuildContext _ctx;
+        public NDMFContainerProvider(BuildContext ctx) => _ctx = ctx;
+        public void SaveAsPersistenceRequired(UnityEngine.Object objectToAdd) => _ctx.AssetSaver.SaveAsset(objectToAdd);
+        public void SaveAsRegular(UnityEngine.Object objectToAdd) { } // Let NDMF crawl our assets when it finishes
+        public void ClearPreviousAssets() { } // ClearPreviousAssets is never used in non-destructive contexts
+    }
+}
+#endif
diff --git a/Music Player/Editor/MusicPlayer.cs.meta b/Music Player/Editor/MusicPlayer.cs.meta
new file mode 100644
index 0000000..d96cad9
--- /dev/null
+++ b/Music Player/Editor/MusicPlayer.cs.meta	
@@ -0,0 +1,11 @@
+fileFormatVersion: 2
+guid: 44013705dced1564689b5665ebb419da
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 
diff --git a/Music Player/Editor/MusicPlayerEditor.asmdef b/Music Player/Editor/MusicPlayerEditor.asmdef
new file mode 100644
index 0000000..49a09ce
--- /dev/null
+++ b/Music Player/Editor/MusicPlayerEditor.asmdef	
@@ -0,0 +1,25 @@
+{
+    "name": "MusicPlayer",
+    "rootNamespace": "",
+    "references": [
+        "VRC.SDK3A",
+        "VRC.SDK3A.Editor",
+        "MusicPlayerRuntime",
+        "AnimatorAsCode.V1",
+        "AnimatorAsCode.V1.VRChat",
+        "AnimatorAsCode.V1.ModularAvatar",
+        "nadena.dev.ndmf",
+        "nadena.dev.ndmf.vrchat"
+    ],
+    "includePlatforms": [
+        "Editor"
+    ],
+    "excludePlatforms": [],
+    "allowUnsafeCode": false,
+    "overrideReferences": false,
+    "precompiledReferences": [],
+    "autoReferenced": true,
+    "defineConstraints": [],
+    "versionDefines": [],
+    "noEngineReferences": false
+}
\ No newline at end of file
diff --git a/Music Player/Editor/MusicPlayerEditor.asmdef.meta b/Music Player/Editor/MusicPlayerEditor.asmdef.meta
new file mode 100644
index 0000000..277db5b
--- /dev/null
+++ b/Music Player/Editor/MusicPlayerEditor.asmdef.meta	
@@ -0,0 +1,7 @@
+fileFormatVersion: 2
+guid: 16c177b70057c1640bd2e9ae8f06516e
+AssemblyDefinitionImporter:
+  externalObjects: {}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 
diff --git a/Music Player/Editor/MusicPlayerInspector.cs b/Music Player/Editor/MusicPlayerInspector.cs
new file mode 100644
index 0000000..d456591
--- /dev/null
+++ b/Music Player/Editor/MusicPlayerInspector.cs	
@@ -0,0 +1,168 @@
+// using UnityEditor;
+// using UnityEngine;
+// using System.Collections.Generic;
+// using System.Linq;
+// using VRC.SDK3.Avatars.ScriptableObjects;
+// using VRC.SDK3.Avatars.Components;
+
+// namespace gay.lilyy.MusicPlayer
+// {
+//     [CustomEditor(typeof(ParameterPreset))]
+//     public class ParameterPresetInspector : UnityEditor.Editor
+//     {
+//         private ParameterPreset preset;
+//         private bool parametersLoaded = false;
+
+//         private void OnEnable()
+//         {
+//             preset = (ParameterPreset)target;
+//             LoadMissingParameters();
+//         }
+
+//         private void LoadMissingParameters()
+//         {
+//             VRCAvatarDescriptor aviDesc = preset.gameObject.GetComponent<VRCAvatarDescriptor>();
+//             if (aviDesc.expressionParameters == null || parametersLoaded)
+//                 return;
+
+//             // Initialize Parameters list if it's null
+//             if (preset.Parameters == null)
+//                 preset.Parameters = new List<PresetParameter>();
+
+//             // Get parameters from the Group's ParametersFile
+//             var sourceParameters = aviDesc.expressionParameters.parameters;
+//             if (sourceParameters == null)
+//                 return;
+
+//             // Create a dictionary of source parameters for quick lookup
+//             var sourceParamDict = sourceParameters.ToDictionary(p => p.name, p => p);
+            
+//             // Create a set of source parameter names
+//             var sourceParameterNames = new HashSet<string>(sourceParamDict.Keys);
+
+//             // Remove parameters that exist in preset but not in source
+//             bool hasChanges = false;
+//             preset.Parameters.RemoveAll(presetParam => 
+//             {
+//                 if (!sourceParameterNames.Contains(presetParam.name))
+//                 {
+//                     hasChanges = true;
+//                     return true; // Remove this parameter
+//                 }
+//                 return false; // Keep this parameter
+//             });
+
+//             // Add missing parameters and update existing ones
+//             foreach (var sourceParam in sourceParameters)
+//             {
+//                 var existingParam = preset.Parameters.FirstOrDefault(p => p.name == sourceParam.name);
+                
+//                 if (existingParam == null)
+//                 {
+//                     // Add new parameter
+//                     var clonedParam = new PresetParameter
+//                     {
+//                         name = sourceParam.name,
+//                         valueType = sourceParam.valueType,
+//                         setTo = sourceParam.defaultValue,
+//                         shouldChange = false,
+//                     };
+
+//                     preset.Parameters.Add(clonedParam);
+//                     hasChanges = true;
+//                 }
+//                 else
+//                 {
+//                     // Update existing parameter to match source type
+//                     if (existingParam.valueType != sourceParam.valueType)
+//                     {
+//                         existingParam.valueType = sourceParam.valueType;
+//                         hasChanges = true;
+//                     }
+//                 }
+//             }
+
+//             if (hasChanges)
+//             {
+//                 EditorUtility.SetDirty(preset);
+//                 Debug.Log($"Updated parameters in preset '{preset.Name}' to match source parameters file");
+//             }
+
+//             parametersLoaded = true;
+//         }
+
+//         public override void OnInspectorGUI()
+//         {
+//             // Ensure parameters are loaded when inspector is drawn
+//             LoadMissingParameters();
+
+//             // Draw the default inspector
+//             DrawDefaultInspector();
+
+//             // Custom parameter list rendering
+//             if (preset.Parameters != null && preset.Parameters.Count > 0)
+//             {
+//                 EditorGUILayout.Space();
+//                 EditorGUILayout.LabelField("Parameters", EditorStyles.boldLabel);
+                
+//                 for (int i = 0; i < preset.Parameters.Count; i++)
+//                 {
+//                     var param = preset.Parameters[i];
+//                     EditorGUILayout.BeginHorizontal();
+                    
+//                     // Parameter name
+//                     EditorGUILayout.LabelField(param.name, GUILayout.Width(150));
+                    
+//                     // Parameter type (read-only)
+//                     EditorGUILayout.LabelField($"Type: {param.valueType}", GUILayout.Width(100));
+                    
+//                     // Should change toggle
+//                     param.shouldChange = EditorGUILayout.Toggle(param.shouldChange, GUILayout.Width(60));
+                    
+//                     // Set to value (only show if shouldChange is true)
+//                     if (param.shouldChange)
+//                     {
+//                         switch (param.valueType)
+//                         {
+//                             case VRCExpressionParameters.ValueType.Bool:
+//                                 param.setTo = EditorGUILayout.Toggle(param.setTo > 0.5f) ? 1f : 0f;
+//                                 break;
+//                             case VRCExpressionParameters.ValueType.Int:
+//                                 param.setTo = EditorGUILayout.IntField((int)param.setTo);
+//                                 break;
+//                             case VRCExpressionParameters.ValueType.Float:
+//                                 param.setTo = EditorGUILayout.FloatField(param.setTo);
+//                                 break;
+//                         }
+//                     }
+//                     else
+//                     {
+//                         EditorGUILayout.LabelField("(unchanged)", GUILayout.Width(80));
+//                     }
+                    
+//                     EditorGUILayout.EndHorizontal();
+//                 }
+//             }
+
+//             // Add a button to manually reload parameters
+//             EditorGUILayout.Space();
+//             if (GUILayout.Button("Reload Parameters from Group"))
+//             {
+//                 parametersLoaded = false;
+//                 LoadMissingParameters();
+//             }
+
+//             // Add a button to clear all parameters
+//             if (GUILayout.Button("Clear All Parameters"))
+//             {
+//                 if (EditorUtility.DisplayDialog("Clear Parameters", 
+//                     "Are you sure you want to clear all parameters from this preset?", 
+//                     "Yes", "No"))
+//                 {
+//                     preset.Parameters.Clear();
+//                     EditorUtility.SetDirty(preset);
+//                 }
+//             }
+//         }
+//     }
+// }
\ No newline at end of file
diff --git a/Music Player/Editor/MusicPlayerInspector.cs.meta b/Music Player/Editor/MusicPlayerInspector.cs.meta
new file mode 100644
index 0000000..2d94f1f
--- /dev/null
+++ b/Music Player/Editor/MusicPlayerInspector.cs.meta	
@@ -0,0 +1,11 @@
+fileFormatVersion: 2
+guid: 2d3599e974bb2eb47819dce224ab2ec9
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 
diff --git a/Music Player/Runtime.meta b/Music Player/Runtime.meta
new file mode 100644
index 0000000..b552978
--- /dev/null
+++ b/Music Player/Runtime.meta	
@@ -0,0 +1,8 @@
+fileFormatVersion: 2
+guid: f080110456f2eaa4db1320833ad91723
+folderAsset: yes
+DefaultImporter:
+  externalObjects: {}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 
diff --git a/Music Player/Runtime/MusicPlayerRuntime.asmdef b/Music Player/Runtime/MusicPlayerRuntime.asmdef
new file mode 100644
index 0000000..5849cf7
--- /dev/null
+++ b/Music Player/Runtime/MusicPlayerRuntime.asmdef	
@@ -0,0 +1,16 @@
+{
+    "name": "MusicPlayerRuntime",
+    "rootNamespace": "",
+    "references": [
+        "VRC.SDK3A"
+    ],
+    "includePlatforms": [],
+    "excludePlatforms": [],
+    "allowUnsafeCode": false,
+    "overrideReferences": false,
+    "precompiledReferences": [],
+    "autoReferenced": true,
+    "defineConstraints": [],
+    "versionDefines": [],
+    "noEngineReferences": false
+}
\ No newline at end of file
diff --git a/Music Player/Runtime/MusicPlayerRuntime.asmdef.meta b/Music Player/Runtime/MusicPlayerRuntime.asmdef.meta
new file mode 100644
index 0000000..2102051
--- /dev/null
+++ b/Music Player/Runtime/MusicPlayerRuntime.asmdef.meta	
@@ -0,0 +1,7 @@
+fileFormatVersion: 2
+guid: e7fd572735456df489badd3662a8acf4
+AssemblyDefinitionImporter:
+  externalObjects: {}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 
diff --git a/Music Player/Runtime/MusicPlayerSong.cs b/Music Player/Runtime/MusicPlayerSong.cs
new file mode 100644
index 0000000..c58ea9e
--- /dev/null
+++ b/Music Player/Runtime/MusicPlayerSong.cs	
@@ -0,0 +1,14 @@
+
+using System.Collections.Generic;
+using UnityEngine;
+using VRC.SDK3.Avatars.ScriptableObjects;
+using VRC.SDKBase;
+namespace gay.lilyy.MusicPlayer
+{
+[RequireComponent(typeof(AudioSource))]
+public class MusicPlayerSong : MonoBehaviour, IEditorOnly {
+        public string Name = "Song Name";
+        public int TrackNumber = 1;
+        public AudioClip song;
+    }
+}
\ No newline at end of file
diff --git a/Music Player/Runtime/MusicPlayerSong.cs.meta b/Music Player/Runtime/MusicPlayerSong.cs.meta
new file mode 100644
index 0000000..3bba72a
--- /dev/null
+++ b/Music Player/Runtime/MusicPlayerSong.cs.meta	
@@ -0,0 +1,11 @@
+fileFormatVersion: 2
+guid: 5491c24bf16b86d45accbad9d16d0522
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: