Hardened the lookups

src/metadata.rs

@@ -57,6 +57,17 @@ pub fn read_artist_mbid(path: &Path) -> Result<Option<String>, lofty::error::Lof
     Ok(tag.get_string(ItemKey::MusicBrainzArtistId).map(String::from))
 }
 
+/// Extract the track title from a music file.
+pub fn read_track_title(path: &Path) -> Result<Option<String>, lofty::error::LoftyError> {
+    let tagged_file = lofty::read_from_path(path)?;
+
+    let Some(tag) = tagged_file.primary_tag().or_else(|| tagged_file.first_tag()) else {
+        return Ok(None);
+    };
+
+    Ok(tag.get_string(ItemKey::TrackTitle).map(String::from))
+}
+
 /// Extract the MusicBrainz recording ID from a music file.
 pub fn read_track_mbid(path: &Path) -> Result<Option<String>, lofty::error::LoftyError> {
     let tagged_file = lofty::read_from_path(path)?;