Performance improvements: SetSelect solves the problem of overloading the...

Performance improvements: SetSelect solves the problem of overloading the program by creating too many note objects in the scene. However, some overloading occurs when creating note objects of selected set in InGame scene.

Assets/TrackAnalysis/TrackInfo.cs

@@ -20,7 +20,17 @@ namespace TrackAnalysis
 
         public List<string> TrackList { get; private set; }
 
-        public List<Note> Notes { get; private set; }
+        public List<Note> Notes
+        {
+            get
+            {
+                TrackNotes notes = new TrackNotes();
+                notes.ExtractNotes(NoteData, BeatInterval);
+                return notes.Notes.ToList();
+            }
+        }
+
+        private MultiDictionary<string, string> NoteData;
 
         public
             TrackInfo(
@@ -38,9 +48,7 @@ namespace TrackAnalysis
 
             ExtractTrackHeader(parseResult);
 
-            TrackNotes notes = new TrackNotes();
-            notes.ExtractNotes(parseResult, BeatInterval);
-            Notes = notes.Notes.ToList();
+            NoteData = parseResult;
         }
 
         private