I agree with Penguin
I was sadden by the music stopping. It was a good song, and left the rest of the reading lacking. (Thanks to the loss of background noice)
Aside from the music situation, which I'm sure you've already taken note of, I too found a spelling error, "If you read thsi tutorial". And agreeing with past reviews, grammar can be a bit off.
However, overall, great job on the flash, it was precise and to the point, nothing fancy, or lacking in effort. Good job.