diff --git a/Cargo.toml b/Cargo.toml
index 893b378..11736f0 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "itunesdb"
-version = "0.1.90"
+version = "0.1.91"
 edition = "2021"
 authors = ["alterwain"]
 
diff --git a/src/xobjects.rs b/src/xobjects.rs
index af3c0a4..87be8c4 100644
--- a/src/xobjects.rs
+++ b/src/xobjects.rs
@@ -270,13 +270,15 @@ impl XDatabase {
         if let XSomeList::Playlists(playlists) = &mut self.find_dataset(2).child {
             res_pls = playlists.to_vec();
         }
-
-        /*if let XSomeList::Playlists(playlists) = &mut self.find_dataset(3).child {
-            res_pls = [res_pls, playlists.to_vec()].concat();
-        }*/
-
         res_pls
     }
+    
+    pub fn if_track_in_library(&mut self, dbid: u64) -> bool {
+        if let XSomeList::TrackList(tracks) = &mut self.find_dataset(1).child {
+            return tracks.iter().any(|t| t.data.dbid == dbid);
+        }
+        false
+    }
 
     pub fn get_unique_id(&mut self) -> u32 {
         if let XSomeList::TrackList(tracks) = &mut self.find_dataset(1).child {
@@ -284,17 +286,7 @@ impl XDatabase {
                 return n + 1;
             }
         }
-        /*if let XSomeList::Playlists(playlists) = &mut self.find_dataset(2).child {
-            for playlist in playlists {
-                if playlist.data.is_master_playlist_flag != 0 {
-                    let a = playlist.args.iter().filter(|s| matches!(s, RawArgument(b))).last().unwrap();
-                    if let RawArgument(b) = a {
-                        return u32::from_le_bytes([b[12], b[13], b[14], b[15]]);
-                    }
-                }
-            }
-        }*/
-        102
+        102 // this must be 102 due to generated RawArguments
     }
 
     pub fn get_track(&mut self, id: u32) -> Option<XTrackItem> {
@@ -360,27 +352,6 @@ impl XDatabase {
             rebuild_quick_sort(playlist);
             self.check_albums();
         }
-
-        /*if let XSomeList::Playlists(playlists) = &mut self.find_dataset(n).child {
-            let playlist = playlists.iter_mut().find(|t| t.data.is_master_playlist_flag != 0);
-            if playlist.is_none() { return; }
-            let playlist = playlist.unwrap();
-            playlist.data.playlist_item_count += 1;
-
-            let elem = playlist.elems.last().unwrap();
-            let mut pl_item = elem.0.clone();
-            println!("{:#?}", pl_item);
-            pl_item.track_id = track.data.unique_id;
-
-            pl_item.group_id = rand::random();
-            let mut args = elem.1.clone();
-            println!("{:#?}", args);
-            if let XPlArgument::RawArgument(raw) = args.last_mut().unwrap() {
-                raw[24] = pl_item.group_id as u8;
-            }
-
-            playlist.elems.push((pl_item, args));
-        }*/
     }
     
     pub fn add_playlist(&mut self, playlist: XPlaylist) {