         // Call UIView positioning extension method positionBelowView() on voiceRateLabel
         voicePitchLabel?.positionRightFromView(voiceRateLabel!, xOffset: 20.0, yOffset: 0.0)
         
-        contentView.addSubview(voicePitchLabel)
+        contentView.addSubview(voicePitchLabel!)
         
         languageLabel = UILabel(frame: CGRect(x: 0.0, y: 0.0, width: CGRectGetWidth(contentView.frame) - 40.0, height: 15.0))
         languageLabel!.textColor = contrastingColor

        // Call UIView positioning extension method positionBelowView() on playButton
        playButton!.positionBelowView(languageLabel!, xOffset: 0.0, yOffset: 20.0)
        
        contentView.addSubview(playButton)
        
        editButton = UIButton(frame: CGRect(x: 0.0, y: 0.0, width: 80.0, height: 30.0))
        editButton!.backgroundColor = UIColor(white: 0.10, alpha: 1.0)

        // Call UIView positioning extension method positionBelowView() on voiceRateLabel
        voiceRateLabel?.positionBelowView(speechTextLabel!, xOffset: 0.0, yOffset: 10.0)
        
        contentView.addSubview(voiceRateLabel!)
        
        voicePitchLabel = UILabel(frame: CGRect(x: 0.0, y: 0.0, width: 60.0, height: 15.0))
        voicePitchLabel!.textColor = contrastingColor
