When retrieving metadata fields from Song object to serialize to JSON, ignore the case of the field name when finding its property getter, otherwise it will fall back to WinampControllerImpl.fetchMetadataFieldValue which don't benefit from the parsing logic in Song, especially in converting the year from a string into an integer.

Author: Aldaviva

WinampNowPlayingToFile/Facade/Song.cs

@@ -28,8 +28,6 @@ public Song(Daniel15.Sharpamp.Song song) {
             return year;
         } else if (Regex.Match(song.Year, @"(?<year>\d{4})-\d\d-\d\d") is { Success: true } isoDateMatch) {
             return int.Parse(isoDateMatch.Groups["year"].Value);
-        } else if (Regex.Match(song.Year, @"\d{4}") is { Success: true } yearMatch) {
-            return int.Parse(yearMatch.Value);
         } else {
             return null;
         }

WinampNowPlayingToFile/Facade/Templating/UnfuckedMustacheGenerator.cs

@@ -92,7 +92,7 @@ private static bool tryGetObjectPropertyValue(object values, string fieldName, o
         Type                                objectType = values.GetType();
         (Type objectType, string fieldName) cacheKey   = (objectType, fieldName);
         if (!PROPERTY_ACCESSOR_CACHE.TryGetValue(cacheKey, out PropertyInfo? propertyAccessor)) {
-            propertyAccessor                  = objectType.GetProperty(fieldName);
+            propertyAccessor                  = objectType.GetProperty(fieldName, BindingFlags.IgnoreCase | BindingFlags.Public | BindingFlags.Instance);
             PROPERTY_ACCESSOR_CACHE[cacheKey] = propertyAccessor;
         }
         value = propertyAccessor?.GetValue(values);