diff --git a/command.py b/command.py
index cf5dec0..30d5e23 100644
--- a/command.py
+++ b/command.py
@@ -61,6 +61,7 @@ def register_all_commands(bot):
     bot.register_command(constants.commands('find_tagged'), cmd_find_tagged)
     bot.register_command(constants.commands('search'), cmd_search_library)
     bot.register_command(constants.commands('add_from_shortlist'), cmd_shortlist)
+    bot.register_command(constants.commands('delete_from_library'), cmd_delete_from_library)
     bot.register_command(constants.commands('drop_database'), cmd_drop_database, True)
     bot.register_command(constants.commands('rescan'), cmd_refresh_cache, True)
 
@@ -305,7 +306,7 @@ def cmd_play_url(bot, user, text, command, parameter):
         var.playlist.append(music_wrapper)
 
         log.info("cmd: add to playlist: " + music_wrapper.format_debug_string())
-        bot.send_msg(constants.strings('file_added', item=music_wrapper.format_short_string()), text)
+        bot.send_msg(constants.strings('file_added', item=music_wrapper.format_song_string()), text)
         if len(var.playlist) == 2:
             # If I am the second item on the playlist. (I am the next one!)
             bot.async_download_next()
@@ -357,6 +358,7 @@ def cmd_play_radio(bot, user, text, command, parameter):
 
             var.playlist.append(music_wrapper)
             log.info("cmd: add to playlist: " + music_wrapper.format_debug_string())
+            bot.send_msg(constants.strings('file_added', item=music_wrapper.format_song_string()), text)
         else:
             bot.send_msg(constants.strings('bad_url'))
 
@@ -710,7 +712,7 @@ def cmd_list_file(bot, user, text, command, parameter):
     global log
 
     files = var.cache.files
-    msgs = [ "<br> <b>Files available:</b>" if not parameter else "<br> <b>Matched files:</b>" ]
+    msgs = [ constants.strings("multiple_file_found") ]
     try:
         count = 0
         for index, file in enumerate(files):
@@ -933,26 +935,29 @@ def cmd_search_library(bot, user, text, command, parameter):
             keywords.append(kw)
 
     music_dicts = var.music_db.query_music_by_keywords(keywords)
-    items = dicts_to_items(bot, music_dicts)
-    song_shortlist = music_dicts
+    if music_dicts:
+        items = dicts_to_items(bot, music_dicts)
+        song_shortlist = music_dicts
 
-    for item in items:
-        count += 1
-        if len(item.tags) > 0:
-            msgs.append("<li><b>{:d}</b> - [{}] <b>{}</b> (<i>{}</i>)</li>".format(count, item.display_type(), item.title, ", ".join(item.tags)))
+        for item in items:
+            count += 1
+            if len(item.tags) > 0:
+                msgs.append("<li><b>{:d}</b> - [{}] <b>{}</b> (<i>{}</i>)</li>".format(count, item.display_type(), item.title, ", ".join(item.tags)))
+            else:
+                msgs.append("<li><b>{:d}</b> - [{}] <b>{}</b> </li>".format(count, item.display_type(), item.title, ", ".join(item.tags)))
+
+        if count != 0:
+            msgs.append("</ul>")
+            msgs.append(constants.strings("shortlist_instruction"))
+            send_multi_lines(bot, msgs, text, "")
         else:
-            msgs.append("<li><b>{:d}</b> - [{}] <b>{}</b> </li>".format(count, item.display_type(), item.title, ", ".join(item.tags)))
-
-    if count != 0:
-        msgs.append("</ul>")
-        msgs.append(constants.strings("shortlist_instruction"))
-        send_multi_lines(bot, msgs, text, "")
+            bot.send_msg(constants.strings("no_file"), text)
     else:
         bot.send_msg(constants.strings("no_file"), text)
 
 
 def cmd_shortlist(bot, user, text, command, parameter):
-    global song_shortlist
+    global song_shortlist, log
     indexes = []
     try:
         indexes = [ int(i) for i in parameter.split(" ") ]
@@ -969,16 +974,14 @@ def cmd_shortlist(bot, user, text, command, parameter):
                 music_wrapper = get_item_wrapper_from_scrap(bot, **kwargs)
                 var.playlist.append(music_wrapper)
                 log.info("cmd: add to playlist: " + music_wrapper.format_debug_string())
-                msgs.append("<li><b>{}</b></li>".format(music_wrapper.item().title))
-                song_shortlist = []
+                msgs.append("<li>[{}] <b>{}</b></li>".format(music_wrapper.item().type, music_wrapper.item().title))
             else:
                 bot.send_msg(constants.strings('bad_parameter', command=command), text)
                 return
 
-            msgs.append("</ul>")
-            send_multi_lines(bot, msgs, text, "")
-            song_shortlist = []
-            return
+        msgs.append("</ul>")
+        send_multi_lines(bot, msgs, text, "")
+        return
     elif len(indexes) == 1:
         index = indexes[0]
         if 1 <= index <= len(song_shortlist):
@@ -988,12 +991,58 @@ def cmd_shortlist(bot, user, text, command, parameter):
             var.playlist.append(music_wrapper)
             log.info("cmd: add to playlist: " + music_wrapper.format_debug_string())
             bot.send_msg(constants.strings('file_added', item=music_wrapper.format_song_string()), text)
-            song_shortlist = []
             return
 
     bot.send_msg(constants.strings('bad_parameter', command=command), text)
 
 
+def cmd_delete_from_library(bot, user, text, command, parameter):
+    global song_shortlist, log
+    indexes = []
+    try:
+        indexes = [ int(i) for i in parameter.split(" ") ]
+    except ValueError:
+        bot.send_msg(constants.strings('bad_parameter', command=command), text)
+        return
+
+    if len(indexes) > 1:
+        msgs = [constants.strings('multiple_file_added') + "<ul>"]
+        count = 0
+        for index in indexes:
+            if 1 <= index <= len(song_shortlist):
+                music_dict = song_shortlist[index - 1]
+                if 'id' in music_dict:
+                    music_wrapper = get_item_wrapper_by_id(bot, music_dict['id'], user)
+                    log.info("cmd: remove from library: " + music_wrapper.format_debug_string())
+                    msgs.append("<li>[{}] <b>{}</b></li>".format(music_wrapper.item().type ,music_wrapper.item().title))
+                    var.playlist.remove_by_id(music_dict['id'])
+                    var.cache.free_and_delete(music_dict['id'])
+                    count += 1
+            else:
+                bot.send_msg(constants.strings('bad_parameter', command=command), text)
+                return
+
+        if count == 0:
+            bot.send_msg(constants.strings('bad_parameter', command=command), text)
+            return
+
+        msgs.append("</ul>")
+        send_multi_lines(bot, msgs, text, "")
+        return
+    elif len(indexes) == 1:
+        index = indexes[0]
+        if 1 <= index <= len(song_shortlist):
+            music_dict = song_shortlist[index - 1]
+            if 'id' in music_dict:
+                music_wrapper = get_item_wrapper_by_id(bot, music_dict['id'], user)
+                bot.send_msg(constants.strings('file_deleted', item=music_wrapper.format_song_string()), text)
+                log.info("cmd: remove from library: " + music_wrapper.format_debug_string())
+                var.playlist.remove_by_id(music_dict['id'])
+                var.cache.free_and_delete(music_dict['id'])
+                return
+
+    bot.send_msg(constants.strings('bad_parameter', command=command), text)
+
 def cmd_drop_database(bot, user, text, command, parameter):
     global log
 
diff --git a/configuration.default.ini b/configuration.default.ini
index b7a19d8..d349dd5 100644
--- a/configuration.default.ini
+++ b/configuration.default.ini
@@ -162,6 +162,7 @@ add_tag = addtag
 remove_tag = untag
 find_tagged = findtagged, ft
 search = search
+delete_from_library = delete
 add_from_shortlist = shortlist, sl
 
 user_ban = userban
@@ -188,8 +189,10 @@ not_admin = You are not an admin!
 not_playing = Nothing is playing right now.
 no_file = File not found.
 wrong_pattern = Invalid regex: {error}.
-file_added  = Added: {item}.
-multiple_file_added  = Multiple files added:
+file_added  = Added {item}.
+file_deleted  = Deleted {item} from the library.
+multiple_file_added  = Multiple items added:
+multiple_file_deleted  = Multiple items deleted from the library:
 multiple_file_found  = Found:
 bad_url = Bad URL requested.
 preconfigurated_radio = Preconfigurated Radio available:
@@ -287,6 +290,7 @@ help = <h3>Commands</h3>
        <li> <b>!<u>un</u>tag </b> {index/*} {tags} - remove {tags} from {index}-th item on the playlist. </li>
        <li> <b>!<u>un</u>tag </b> {index/*} * - remove all tags from {index}-th item on the playlist. </li>
        <li> <b>!<u>fin</u>dtagged </b> (or <b>!ft</b>) {tags} - find item with {tags} in the music library. </li>
+       <li> <b>!<u>del</u>ete </b> {index} - delete {index}-th item on the shortlist from the music library. </li>
        </ul>
        <b>Other</b>
        <ul>
diff --git a/media/cache.py b/media/cache.py
index 6c2d349..736810e 100644
--- a/media/cache.py
+++ b/media/cache.py
@@ -80,7 +80,7 @@ class MusicCache(dict):
         self.log.debug("library: music save into database: %s" % self[id].format_debug_string())
         self.db.insert_music(self[id].to_dict())
 
-    def delete(self, id):
+    def free_and_delete(self, id):
         item = self.get_item_by_id(None, id)
         if item:
             self.log.debug("library: DELETE item from the database: %s" % item.format_debug_string())
diff --git a/media/item.py b/media/item.py
index 3eb8182..5ff5fff 100644
--- a/media/item.py
+++ b/media/item.py
@@ -110,6 +110,6 @@ class BaseItem:
             self.bot.send_msg(msg)
 
     def to_dict(self):
-        return {"type" : "base", "id": self.id, "ready": self.ready, "path": self.path, "tags": self.tags}
+        return {"type" : self.type, "id": self.id, "ready": self.ready, "path": self.path, "tags": self.tags}
 
 
diff --git a/media/playlist.py b/media/playlist.py
index 347b423..9387cd7 100644
--- a/media/playlist.py
+++ b/media/playlist.py
@@ -3,6 +3,7 @@ import random
 import threading
 import logging
 import random
+import time
 
 import variables as var
 from media.file import FileItem
@@ -325,6 +326,7 @@ class BasePlaylist(list):
 
     def start_async_validating(self):
         if not self.validating_thread_lock.locked():
+            time.sleep(0.1) # Just avoid validation finishes too fast and delete songs while something is reading it.
             th = threading.Thread(target=self._check_valid, name="Validating")
             th.daemon = True
             th.start()
@@ -337,7 +339,7 @@ class BasePlaylist(list):
             self.log.debug("playlist: validating %s" % item.format_debug_string())
             if not item.validate() or item.is_failed():
                 self.log.debug("playlist: validating failed.")
-                var.cache.delete(item.id)
+                var.cache.free_and_delete(item.id)
                 self.remove_by_id(item.id)
 
         self.log.debug("playlist: validating finished.")
diff --git a/media/radio.py b/media/radio.py
index 6c3bdd3..365d218 100644
--- a/media/radio.py
+++ b/media/radio.py
@@ -83,7 +83,7 @@ def get_radio_title(url):
             requests.exceptions.Timeout) as e:
         error_traceback = traceback.format_exc()
         error = error_traceback.rstrip().split("\n")[-1]
-        log.debug("radio: unsuccessful attempts on fetching radio title (icy): " + e)
+        log.debug("radio: unsuccessful attempts on fetching radio title (icy): " + error)
     return url
 
 
diff --git a/media/url.py b/media/url.py
index ee1a950..8b30585 100644
--- a/media/url.py
+++ b/media/url.py
@@ -224,7 +224,7 @@ class URLItem(BaseItem):
     def format_song_string(self, user):
         if self.ready in ['validated', 'yes']:
             return constants.strings("url_item",
-                                        title=self.title,
+                                        title=self.title if self.title else "??",
                                         url=self.url,
                                         user=user)
         return self.url
diff --git a/mumbleBot.py b/mumbleBot.py
index 7726ba1..03cb41b 100644
--- a/mumbleBot.py
+++ b/mumbleBot.py
@@ -347,7 +347,7 @@ class MumbleBot:
                 break
             else:
                 var.playlist.remove_by_id(next.id)
-                var.cache.delete(next.id)
+                var.cache.free_and_delete(next.id)
 
 
     # =======================
@@ -407,7 +407,7 @@ class MumbleBot:
                                 self.send_msg(constants.strings('download_in_progress', item=current.format_short_string()))
                         else:
                             var.playlist.remove_by_id(current.id)
-                            var.cache.delete(current.id)
+                            var.cache.free_and_delete(current.id)
                     else:
                         self._loop_status = 'Empty queue'
                 else: