Added AvaloniaUI project.

Harmonia.Core/Engine/BassAudioEngine.cs

@@ -86,6 +86,8 @@ public class BassAudioEngine : IAudioEngine, IDisposable
 
     public BassAudioEngine()
     {
+        BassLoader.Initialize();
+
         _mediaPlayer = new MediaPlayer();
         _mediaPlayer.MediaLoaded += OnMediaLoaded;
         _mediaPlayer.MediaFailed += OnPlaybackStopped;

Harmonia.Core/Engine/BassLoader.cs

@@ -0,0 +1,22 @@
+using System.Runtime.InteropServices;
+
+namespace Harmonia.Core.Engine;
+
+public static class BassLoader
+{
+    public static void Initialize()
+    {
+        string archFolder = Environment.Is64BitProcess ? "x64" : "x86";
+        string bassPluginPath = Path.Combine("Plugins", "Bass", "Win32", archFolder);
+
+        LoadLibrary(bassPluginPath, "bass.dll");
+        LoadLibrary(bassPluginPath, "bassflac.dll");
+    }
+
+    private static void LoadLibrary(string bassPluginPath, string resourceName)
+    {
+        string resourcePath = Path.Combine(bassPluginPath, resourceName);
+
+        NativeLibrary.Load(resourcePath);
+    }
+}