For the best results, first practice with the PDF version of your piece. Once you are secure with the organ part, then try practicing with the Video Sheet Music Aural Click Track version. In the click version, the click track (or "conductor track") is not only a metronome but your steady guide through any ritardandos, accelerandos, fermatas, etc. After you are secure with the tempo and all time alterations, move on to the Visual Click Track version. This will be like "removing the training wheels" but, with diligence and patience, the results will feel as close to a real performance as possible. With the Visual Click Track version, you will also be afforded the luxury of using your OSA file for a real time performance in your home, at your church or for a workshop.