I can't think of any reason that removing this wasn't a mistake, so I'm

putting it back

src/audiocontrols.cpp

@@ -204,6 +204,7 @@ AudioControls::onPlaybackStarted( const Tomahawk::result_ptr& result )
     m_sliderTimeLine.stop();
     m_sliderTimeLine.setDuration( duration );
     m_sliderTimeLine.setFrameRange( 0, duration );
+    m_sliderTimeLine.setCurveShape( QTimeLine::LinearCurve );
     m_sliderTimeLine.setCurrentTime( 0 );
     m_seekMsecs = -1;