The reason why it has Learn Skip Counting by 7s audio is because in 2017 I discovered that YouTube replaced the original audio of 8s with a stock music, and it stayed forever this way. No one around seems to have the audio, not even the Wayback Machine. R.I.P. Learn Skip Counting by 8s original audio.
Edit July 7, 2023: I found a copy of the video which had the original audio, here it is: https://www.youtube.com/watch?v=TtvWLDI_8so and I'm soooo happy to find out that we got the original audio back. Hooray!
