diff --git a/src/GameEngineAdapter.Headless/HeadlessAudioPlayer.cs b/src/GameEngineAdapter.Headless/HeadlessAudioPlayer.cs
index c95912c..b251108 100644
--- a/src/GameEngineAdapter.Headless/HeadlessAudioPlayer.cs
+++ b/src/GameEngineAdapter.Headless/HeadlessAudioPlayer.cs
@@ -16,15 +16,15 @@ public sealed class HeadlessAudioPlayer : IAudioPlayer
 
     /// <inheritdoc />
     public void StartPlayback(string audioAssetId, bool loopPlayback = false) =>
-        _recordedCalls.Add(("Play", audioAssetId, loopPlayback));
+        _recordedCalls.Add((nameof(StartPlayback), audioAssetId, loopPlayback));
 
     /// <inheritdoc />
     public void StopPlayback(string audioAssetId) =>
-        _recordedCalls.Add(("Stop", audioAssetId, null));
+        _recordedCalls.Add((nameof(StopPlayback), audioAssetId, null));
 
     /// <inheritdoc />
     public void SetVolume(string audioAssetId, float volume) =>
-        _recordedCalls.Add(("SetVolume", audioAssetId, volume));
+        _recordedCalls.Add((nameof(SetVolume), audioAssetId, volume));
 
     /// <summary>Clears all recorded calls.</summary>
     public void Clear() => _recordedCalls.Clear();
diff --git a/src/GameEngineAdapter.UnitTests/HeadlessAudioPlayerTests.cs b/src/GameEngineAdapter.UnitTests/HeadlessAudioPlayerTests.cs
index 9770c44..3208efc 100644
--- a/src/GameEngineAdapter.UnitTests/HeadlessAudioPlayerTests.cs
+++ b/src/GameEngineAdapter.UnitTests/HeadlessAudioPlayerTests.cs
@@ -26,7 +26,7 @@ public void HeadlessAudioPlayer_Play_RecordsCall()
         // Assert
         Assert.Single(player.RecordedCalls);
         var call = player.RecordedCalls[0];
-        Assert.Equal("Play", call.Method);
+        Assert.Equal(nameof(player.StartPlayback), call.Method);
         Assert.Equal("music_main", call.AudioAssetId);
         Assert.Equal(true, call.Arg);
     }
@@ -57,7 +57,7 @@ public void HeadlessAudioPlayer_Stop_RecordsCall()
         // Assert
         Assert.Single(player.RecordedCalls);
         var call = player.RecordedCalls[0];
-        Assert.Equal("Stop", call.Method);
+        Assert.Equal(nameof(player.StopPlayback), call.Method);
         Assert.Equal("music_main", call.AudioAssetId);
         Assert.Null(call.Arg);
     }
@@ -74,7 +74,7 @@ public void HeadlessAudioPlayer_SetVolume_RecordsCall()
         // Assert
         Assert.Single(player.RecordedCalls);
         var call = player.RecordedCalls[0];
-        Assert.Equal("SetVolume", call.Method);
+        Assert.Equal(nameof(player.SetVolume), call.Method);
         Assert.Equal("music_main", call.AudioAssetId);
         Assert.Equal(0.5f, call.Arg);
     }
@@ -92,9 +92,9 @@ public void HeadlessAudioPlayer_MultipleOperations_RecordsAllInOrder()
 
         // Assert
         Assert.Equal(3, player.RecordedCalls.Count);
-        Assert.Equal("Play", player.RecordedCalls[0].Method);
-        Assert.Equal("SetVolume", player.RecordedCalls[1].Method);
-        Assert.Equal("Stop", player.RecordedCalls[2].Method);
+        Assert.Equal(nameof(player.StartPlayback), player.RecordedCalls[0].Method);
+        Assert.Equal(nameof(player.SetVolume), player.RecordedCalls[1].Method);
+        Assert.Equal(nameof(player.StopPlayback), player.RecordedCalls[2].Method);
     }
 
     [Fact]