Hi, Andrew!
Thank you for your very kind reply. I am using Google Chrome. Actually, it was working perfectly fine before. Then 3 days ago Up until now, it’s still not working with sounds. The other videos with your YouTube video incorporated in the Tab Play-Along are all okay, but the tutorials like this https://rockclass101.com/module-3/technique-lesson-slides/ don’t have a sound.
I am using a Macbook.
By the way, I just checked… it works fine on Safari. 🙂
Thank you so much! 🎵🎵