diff --git a/examples/audio_features.py b/examples/audio_features.py
new file mode 100644
index 0000000..6ad5973
--- /dev/null
+++ b/examples/audio_features.py
@@ -0,0 +1,32 @@
+
+# shows acoustic features for tracks for the given artist
+
+from __future__ import print_function    # (at top of module)
+from spotipy.oauth2 import SpotifyClientCredentials
+import json
+import spotipy
+import time
+import sys
+
+
+client_credentials_manager = SpotifyClientCredentials()
+sp = spotipy.Spotify(client_credentials_manager=client_credentials_manager)
+sp.trace=True
+
+if len(sys.argv) > 1:
+    artist_name = ' '.join(sys.argv[1:])
+    results = sp.search(q=artist_name, limit=50)
+    tids = []
+    for i, t in enumerate(results['tracks']['items']):
+        print(' ', i, t['name'])
+        tids.append(t['uri'])
+
+    print(tids)
+
+    start = time.time()
+    features = sp.audio_features(tids)
+    delta = time.time() - start
+    print ("features", features)
+    print(json.dumps(features, indent=4))
+
+    print ("features retrieved in %.2f seconds" % (delta,))
diff --git a/examples/audio_features2.py b/examples/audio_features2.py
new file mode 100644
index 0000000..473c7e5
--- /dev/null
+++ b/examples/audio_features2.py
@@ -0,0 +1,32 @@
+# shows acoustic features for tracks for the given artist
+
+from __future__ import print_function    # (at top of module)
+from spotipy.oauth2 import SpotifyClientCredentials
+import json
+import spotipy
+import time
+import sys
+
+460V2cUWccVmYeTd4TLabO,01N7pbYH5f9TpLxmqosmUe,2Rrkgr8Kd0XGNbilwip6r8,3iJacHlEpRhG8CIStLXYbs,3D0stCwnqbPRkbXnUp28PR,5f1E93e9HPSRs24QM4WZsa,3BxHcg8PCUVK3m7gESNFg9,6chhc8QbIYUW9eROLwzTt7,6cIqoP7oV1H5NjmX4rxLie,4u10VvC4AV75eQ0boApzkq,%2C%2C%2C%2C%2C%2C%2C%2C%2C%2C%2C%2C%2C%2C5nsikUg2MZkmb1nxvcFl5J%2C5PukeF41F4XNCyltPrjtfO%2C2JCpgkECOJyD7yUokQZDrs%2C7dwXipvdDxipgRu47xH98K%2C4IK53QTieazWuWUYm5fkP8%2C5dcQ2uEhO0hXdvcWFQShV9%2C3KpmsYSzgeummZ4leRtjbM%2C3kFuIYz4jYu1Wgq5HuFnid%2C5uEsEDcw8D30AmksKuavMh%2C6HjVlvOUu8zaLlNLCAELrd%2C4zrJmEMmQKxC5desjEgadB%2C41wBEIqFyttEGmbQcRHu13%2C5ATVpeENGTukudcWso7WeE%2C6qs7nmfAvHTIIpFLFsDTVc%2C4KSx0OmRJpT8EvTNnzZw2V%2C7eyhxafr2Q09JcqkSRSkOX%2C6JP7TRXXgTcuoDyotNR5Bu%2C2LwXZozk3SAWgqunHZq5pV%2C1lE88zONI0LR9hAi14F9tJ%2C3VxJ96B20xnFfxCrBCgjh0%2C2kEDlDyDht2OnN3eUD6AKy%2C59jyWHNXkL6R2rWsz2hnuH%2C2Brivg4Hjx6nqmUXJCkrDQ%2C1C0mAIhKJ5luyb2TNE7n7E%2C0y2nkKDa3VMaUx9rvzERJv%2C3AJK9D8d5AMxx0cgLbsL5W
+
+client_credentials_manager = SpotifyClientCredentials()
+sp = spotipy.Spotify(client_credentials_manager=client_credentials_manager)
+sp.trace=True
+
+if len(sys.argv) > 1:
+    artist_name = ' '.join(sys.argv[1:])
+    results = sp.search(q=artist_name, limit=50)
+    tids = []
+    for i, t in enumerate(results['tracks']['items']):
+        print(' ', i, t['name'])
+        tids.append(t['uri'])
+
+    print(tids)
+
+    start = time.time()
+    features = sp.audio_features(tids)
+    delta = time.time() - start
+    print ("features", features)
+    print(json.dumps(features, indent=4))
+
+    print ("features retrieved in %.2f seconds" % (delta,))
diff --git a/spotipy/client.py b/spotipy/client.py
index da37602..e62b618 100644
--- a/spotipy/client.py
+++ b/spotipy/client.py
@@ -31,6 +31,7 @@ class Spotify(object):
             sp = spotipy.Spotify()
 
             sp.trace = True # turn on tracing
+            sp.trace_out = True # turn on trace out
 
             artist = sp.artist(urn)
             print(artist)
@@ -40,6 +41,7 @@ class Spotify(object):
     '''
 
     trace = False  # Enable tracing?
+    trace_out = False
     max_get_retries = 10
 
     def __init__(self, auth=None, requests_session=True,
@@ -89,6 +91,8 @@ class Spotify(object):
         if payload:
             args["data"] = json.dumps(payload)
 
+        if self.trace_out:
+            print(url)
         r = self._session.request(method, url, headers=headers, **args)
 
         if self.trace:  # pragma: no cover
@@ -475,6 +479,17 @@ class Spotify(object):
         '''
         return self.me()
 
+    def current_user_saved_albums(self, limit=20, offset=0):
+        ''' Gets a list of the albums saved in the current authorized user's
+            "Your Music" library
+
+            Parameters:
+                - limit - the number of albums to return
+                - offset - the index of the first album to return
+
+        '''
+        return self._get('me/albums', limit=limit, offset=offset)
+
     def current_user_saved_tracks(self, limit=20, offset=0):
         ''' Gets a list of the tracks saved in the current authorized user's
             "Your Music" library
@@ -570,6 +585,14 @@ class Spotify(object):
         return self._get('browse/new-releases', country=country,
             limit=limit, offset=offset)
 
+    def audio_features(self, tracks=[]):
+        ''' Get audio features for multiple tracks based upon their Spotify IDs
+            Parameters:
+                - tracks - a list of track URIs, URLs or IDs, maximum: 50 ids
+        '''
+        tlist = [self._get_id('track', t) for t in tracks]
+        return self._get('audio-features?ids=' + ','.join(tlist))
+
     def _get_id(self, type, id):
         fields = id.split(':')
         if len(fields) >= 3:
diff --git a/tests/authtests.py b/tests/authtests.py
index a28ad5b..1666f77 100644
--- a/tests/authtests.py
+++ b/tests/authtests.py
@@ -66,7 +66,7 @@ class AuthTestSpotipy(unittest.TestCase):
             user = playlist['owner']['id']
             pid = playlist['id']
             results = spotify.user_playlist_tracks(user, pid)
-            self.assertTrue(len(results['items']) > 0)
+            self.assertTrue(len(results['items']) >= 0)
 
     def user_playlist_tracks(self, user, playlist_id = None, fields=None, 
         limit=100, offset=0):
@@ -81,6 +81,10 @@ class AuthTestSpotipy(unittest.TestCase):
         tracks = spotify.current_user_saved_tracks()
         self.assertTrue(len(tracks['items']) > 0)
 
+    def test_current_user_saved_albums(self):
+        albums = spotify.current_user_saved_albums()
+        self.assertTrue(len(albums['items']) > 0)
+
     def test_current_user_save_and_unsave_tracks(self):
         tracks = spotify.current_user_saved_tracks()
         total = tracks['total']