diff --git a/static/js/filter.js b/static/js/filter.js
index 83fd7c7..4c5f7a5 100644
--- a/static/js/filter.js
+++ b/static/js/filter.js
@@ -20,15 +20,18 @@ function buttonToggle(clickedButton) {
 }
 
 function filterSongs() {
-	const searchTerm = search.value.trim().toLowerCase().normalize("NFD").replace(/\p{Diacritic}/gu, "");
+	const searchTerm = sanitizeString(search.value);
 	const songs = Array.from(songList.children);
 	songs.forEach(song => {
-		const title = song.dataset.title.toLowerCase().normalize("NFD").replace(/\p{Diacritic}/gu, "");
-		const matching = title.includes(searchTerm) && (!selectedCategory || song.dataset.category === selectedCategory);
+		const matching = song.dataset.title.includes(searchTerm) && (!selectedCategory || song.dataset.category === selectedCategory);
 		song.classList.toggle("hidden", !matching);
 	});
 }
 
+function sanitizeString(string) {
+	return string.trim().toLowerCase().normalize("NFD").replace(/\p{Diacritic}/gu, "")
+}
+
 // Event listeners
 search.addEventListener("input", filterSongs);
 // Filtering happens before the reset itself without this timeout
@@ -37,7 +40,10 @@ buttons.forEach(button => button.addEventListener("click", () => buttonToggle(bu
 
 // Normalize song titles
 Array.from(songList.children).forEach(song => {
-	song.dataset.title = song.dataset.title.toLowerCase().normalize("NFD").replace(/\p{Diacritic}/gu, "");
+	song.dataset.title = sanitizeString(song.dataset.title);
+	if (song.dataset.artist) {
+		song.dataset.artist = sanitizeString(song.dataset.artist);
+	}
 });
 
 // Display the filter section on JS-enabled browsers