         }
     }
 
-    ///Playback postion as percentage 0.0->1.0 in terms of absolute length of file
+    ///Playback postion as percentage 0.0->1.0 relative to absolute length of file
     public var playbackProgress: Float {
         get {
             progress(forFrame: playbackPosition)

        return current + startPosition
    }
    
    ///Current frame position of playback in terms of absolute length of file
    ///
    ///Setting this value will reposition the playback position to the
    /// specified frame.

        }
    }

    ///TimeInterval of current position relative to absolute length of file
    public var playbackTime: TimeInterval {
        get {
            time(forFrame: playbackPosition)
