playback speed slider

main.py

@@ -185,6 +185,9 @@ class ApplicationWindow(QMainWindow, Ui_MainWindow):
             lambda: self.player.setPosition(self.playbackSlider.value())
         )  # sliderReleased works better than sliderMoved
         self.volumeSlider.sliderMoved[int].connect(lambda: self.volume_changed())
+        self.speedSlider.sliderReleased.connect(
+            lambda: self.speed_changed(self.speedSlider.value())
+        )
         self.playButton.clicked.connect(self.on_play_clicked)  # Click to play/pause
         self.previousButton.clicked.connect(self.on_previous_clicked)
         self.nextButton.clicked.connect(self.on_next_clicked)  # Click to next song
@@ -425,6 +428,10 @@ class ApplicationWindow(QMainWindow, Ui_MainWindow):
         except Exception as e:
             logging.error(f"main.py volume_changed() | Changing volume error: {e}")
 
+    def speed_changed(self, rate: int) -> None:
+        """Handles playback speed changes"""
+        self.player.setPlaybackRate(rate / 50)
+
     def on_play_clicked(self) -> None:
         """Updates the Play & Pause buttons when clicked"""
         if self.player.state() == QMediaPlayer.State.PlayingState:

ui.py

@@ -2,7 +2,7 @@
 
 # Form implementation generated from reading ui file 'ui.ui'
 #
-# Created by: PyQt5 UI code generator 5.15.9
+# Created by: PyQt5 UI code generator 5.15.10
 #
 # WARNING: Any manual changes made to this file will be lost when pyuic5 is
 # run again.  Do not edit this file unless you know what you are doing.
@@ -122,7 +122,7 @@ class Ui_MainWindow(object):
         self.hLayoutMusicTable.setStretch(1, 10)
         self.verticalLayout.addLayout(self.hLayoutMusicTable)
         self.verticalLayout.setStretch(0, 1)
-        self.verticalLayout.setStretch(1, 10)
+        self.verticalLayout.setStretch(1, 2)
         self.verticalLayout_3.addLayout(self.verticalLayout)
         self.hLayoutControls = QtWidgets.QHBoxLayout()
         self.hLayoutControls.setSpacing(6)
@@ -156,12 +156,23 @@ class Ui_MainWindow(object):
         self.volumeSlider.setObjectName("volumeSlider")
         self.hLayoutControls2.addWidget(self.volumeSlider)
         self.verticalLayout_3.addLayout(self.hLayoutControls2)
-        self.verticalLayout_3.setStretch(0, 10)
+        self.hLayoutControls3 = QtWidgets.QHBoxLayout()
-        self.verticalLayout_3.setStretch(1, 1)
+        self.hLayoutControls3.setObjectName("hLayoutControls3")
-        self.verticalLayout_3.setStretch(2, 1)
+        self.speedSlider = QtWidgets.QSlider(self.centralwidget)
+        self.speedSlider.setMinimum(0)
+        self.speedSlider.setMaximum(100)
+        self.speedSlider.setSingleStep(1)
+        self.speedSlider.setProperty("value", 50)
+        self.speedSlider.setOrientation(QtCore.Qt.Horizontal)
+        self.speedSlider.setInvertedAppearance(False)
+        self.speedSlider.setTickPosition(QtWidgets.QSlider.NoTicks)
+        self.speedSlider.setObjectName("speedSlider")
+        self.hLayoutControls3.addWidget(self.speedSlider)
+        self.verticalLayout_3.addLayout(self.hLayoutControls3)
+        self.verticalLayout_3.setStretch(0, 20)
         MainWindow.setCentralWidget(self.centralwidget)
         self.menubar = QtWidgets.QMenuBar(MainWindow)
-        self.menubar.setGeometry(QtCore.QRect(0, 0, 1152, 21))
+        self.menubar.setGeometry(QtCore.QRect(0, 0, 1152, 41))
         self.menubar.setObjectName("menubar")
         self.menuFile = QtWidgets.QMenu(self.menubar)
         self.menuFile.setObjectName("menuFile")

ui.ui

@@ -17,9 +17,9 @@
    <string/>
   </property>
   <widget class="QWidget" name="centralwidget">
-   <layout class="QVBoxLayout" name="verticalLayout_3" stretch="10,1,1">
+   <layout class="QVBoxLayout" name="verticalLayout_3" stretch="20,0,0,0">
     <item>
-     <layout class="QVBoxLayout" name="verticalLayout" stretch="1,10">
+     <layout class="QVBoxLayout" name="verticalLayout" stretch="1,2">
       <property name="spacing">
        <number>6</number>
       </property>
@@ -279,6 +279,35 @@
       </item>
      </layout>
     </item>
+    <item>
+     <layout class="QHBoxLayout" name="hLayoutControls3">
+      <item>
+       <widget class="QSlider" name="speedSlider">
+        <property name="minimum">
+         <number>0</number>
+        </property>
+        <property name="maximum">
+         <number>100</number>
+        </property>
+        <property name="singleStep">
+         <number>1</number>
+        </property>
+        <property name="value">
+         <number>50</number>
+        </property>
+        <property name="orientation">
+         <enum>Qt::Horizontal</enum>
+        </property>
+        <property name="invertedAppearance">
+         <bool>false</bool>
+        </property>
+        <property name="tickPosition">
+         <enum>QSlider::NoTicks</enum>
+        </property>
+       </widget>
+      </item>
+     </layout>
+    </item>
    </layout>
   </widget>
   <widget class="QMenuBar" name="menubar">
@@ -287,7 +316,7 @@
      <x>0</x>
      <y>0</y>
      <width>1152</width>
-     <height>21</height>
+     <height>41</height>
     </rect>
    </property>
    <widget class="QMenu" name="menuFile">