Hi Master Bao, glad I bumped into your channel. Your content is always so useful and you explained things so clearly. May I offer some feedback? IMO, the rock and roll guitar background music doesn't seem to match too well with your visual content. Also, sometimes, I find the music volume was too loud and it covered your speaking. I wonder if you could consider using some softer music instead (or not at all). Thanks kindly for reading this comment. Much appreciated.