diff --git a/docs/changes.rst b/docs/changes.rst
index cd54336c..54cd8b1f 100644
--- a/docs/changes.rst
+++ b/docs/changes.rst
@@ -4,6 +4,11 @@ Changes
 
 This change log is used to track all major changes to Mopidy.
 
+0.1.0a1 (unreleased)
+====================
+
+- Changed backend API for get/filter/find_exact/search.
+
 
 0.1.0a0 (2010-03-27)
 ====================
diff --git a/docs/installation/despotify.rst b/docs/installation/despotify.rst
index f00a4dee..ef47ca64 100644
--- a/docs/installation/despotify.rst
+++ b/docs/installation/despotify.rst
@@ -75,5 +75,3 @@ The test script should ask for your username and password (which must be for a
 Spotify Premium account), ask for a search query, list all your playlists with
 tracks, play 10s from a random song from the search result, pause for two
 seconds, play for five more seconds, and quit.
-o stop Mopidy, press ``CTRL+C``.
-
diff --git a/mopidy/__init__.py b/mopidy/__init__.py
index d94913b0..711a6242 100644
--- a/mopidy/__init__.py
+++ b/mopidy/__init__.py
@@ -1,7 +1,7 @@
 from mopidy import settings as raw_settings
 
 def get_version():
-    return u'0.1.0a0'
+    return u'0.1.0a1'
 
 def get_mpd_protocol_version():
     return u'0.16.0'
diff --git a/mopidy/mixers/denon.py b/mopidy/mixers/denon.py
index ae5871d9..9d065d9a 100644
--- a/mopidy/mixers/denon.py
+++ b/mopidy/mixers/denon.py
@@ -26,12 +26,12 @@ class DenonMixer(BaseMixer):
     - :attr:`mopidy.settings.MIXER_EXT_PORT` -- Example: ``/dev/ttyUSB0``
     """
 
-    def __init__(self):
+    def __init__(self, device=None):
         """
         Connects using the serial specifications from Denon's RS-232 Protocol
         specification: 9600bps 8N1.
         """
-        self._device = Serial(port=MIXER_EXT_PORT, timeout=0.2)
+        self._device = device or Serial(port=MIXER_EXT_PORT, timeout=0.2)
         self._levels = ['99'] + ["%(#)02d" % {'#': v} for v in range(0, 99)]
         self._volume = 0
         self._lock = Lock()
diff --git a/tests/mixers/denon_test.py b/tests/mixers/denon_test.py
index d0fb9a46..82e813e9 100644
--- a/tests/mixers/denon_test.py
+++ b/tests/mixers/denon_test.py
@@ -1,6 +1,7 @@
 import unittest
 
 from mopidy.mixers.denon import DenonMixer
+from tests.mixers.dummy_test import BaseMixerTest
 
 class DenonMixerDeviceMock(object):
     def __init__(self):
@@ -23,28 +24,16 @@ class DenonMixerDeviceMock(object):
     def open(self):
         self._open = True
 
-class DenonMixerTest(unittest.TestCase):
+class DenonMixerTest(BaseMixerTest):
+    ACTUAL_MAX = 99
+
+    INITIAL = 1
+
     def setUp(self):
-        self.m = DenonMixer()
-        self.m._device = DenonMixerDeviceMock()
-
-    def test_volume_set_to_min(self):
-        self.m.volume = 0
-        self.assertEqual(self.m.volume, 0)
-
-    def test_volume_set_to_max(self):
-        self.m.volume = 100
-        self.assertEqual(self.m.volume, 99)
-
-    def test_volume_set_to_below_min_results_in_min(self):
-        self.m.volume = -10
-        self.assertEqual(self.m.volume, 0)
-
-    def test_volume_set_to_above_max_results_in_max(self):
-        self.m.volume = 110
-        self.assertEqual(self.m.volume, 99)
+        self.device = DenonMixerDeviceMock()
+        self.mixer = DenonMixer(device=self.device)
 
     def test_reopen_device(self):
-        self.m._device._open = False
-        self.m.volume = 10
-        self.assertTrue(self.m._device._open)
+        self.device._open = False
+        self.mixer.volume = 10
+        self.assertTrue(self.device.isOpen())
diff --git a/tests/mixers/dummy_test.py b/tests/mixers/dummy_test.py
index 00d748fe..35944e14 100644
--- a/tests/mixers/dummy_test.py
+++ b/tests/mixers/dummy_test.py
@@ -3,24 +3,32 @@ import unittest
 from mopidy.mixers.dummy import DummyMixer
 
 class BaseMixerTest(unittest.TestCase):
-    def setUp(self):
-        self.m = DummyMixer()
+    MIN = 0
+    MAX = 100
 
-    def test_volume_is_None_initially(self):
-        self.assertEqual(self.m.volume, None)
+    ACTUAL_MIN = MIN
+    ACTUAL_MAX = MAX
+
+    INITIAL = None
+
+    def setUp(self):
+        self.mixer = DummyMixer()
+
+    def test_initial_volume(self):
+        self.assertEqual(self.mixer.volume, self.INITIAL)
 
     def test_volume_set_to_min(self):
-        self.m.volume = 0
-        self.assertEqual(self.m.volume, 0)
+        self.mixer.volume = self.MIN
+        self.assertEqual(self.mixer.volume, self.ACTUAL_MIN)
 
     def test_volume_set_to_max(self):
-        self.m.volume = 100
-        self.assertEqual(self.m.volume, 100)
+        self.mixer.volume = self.MAX
+        self.assertEqual(self.mixer.volume, self.ACTUAL_MAX)
 
     def test_volume_set_to_below_min_results_in_min(self):
-        self.m.volume = -10
-        self.assertEqual(self.m.volume, 0)
+        self.mixer.volume = -10
+        self.assertEqual(self.mixer.volume, self.ACTUAL_MIN)
 
     def test_volume_set_to_above_max_results_in_max(self):
-        self.m.volume = 110
-        self.assertEqual(self.m.volume, 100)
+        self.mixer.volume = self.MAX + 10
+        self.assertEqual(self.mixer.volume, self.ACTUAL_MAX)
diff --git a/tests/version_test.py b/tests/version_test.py
index 4a9b948d..f6d6cfb3 100644
--- a/tests/version_test.py
+++ b/tests/version_test.py
@@ -8,7 +8,8 @@ class VersionTest(unittest.TestCase):
         SV(get_version())
 
     def test_versions_can_be_strictly_ordered(self):
-        self.assert_(SV(get_version()) < SV('0.1.0a1'))
+        self.assert_(SV(get_version()) > SV('0.1.0a0'))
+        self.assert_(SV(get_version()) < SV('0.1.0a2'))
         self.assert_(SV('0.1.0a1') < SV('0.1.0'))
         self.assert_(SV('0.1.0') < SV('0.1.1'))
         self.assert_(SV('0.1.1') < SV('0.2.0'))