diff --git a/src/service/dto.rs b/src/service/dto.rs
index 47c0184..d7d7527 100644
--- a/src/service/dto.rs
+++ b/src/service/dto.rs
@@ -235,3 +235,4 @@ impl From<settings::Settings> for Settings {
 }
 
 // TODO: Preferences, CollectionFile, Song and Directory should have dto types
+// TODO Song dto type should skip `None` values when serializing, to lower payload sizes by a lot