Twu videos

I was looking through the magnetism chapter today and it looked really difficult to understand. I feel that it would make the chapter much easier if we can have Twu's videos to help. But Twu did "sound and wave" chapter first before electrostatics so our class and her videos are out of sync right now. Do you think it's possible for us to cover "sound and wave" after this chapter's test so we can have Twu videos to watch for the rest of the chapters?