Why, Newgrounds?
I understand the "useless reviews" on flash games but come on, some of them are to-the-point reviews! SERIOUSLY.
I agree with most them, but I will detail, in-depth, why I think it's a horrible beat.
1) Stock FL sounds.
2) Over-excitement on the Piano Roll for those piano keys. It sounds like you got excited, made a few random clicks with a set size, and then adjusted timing a bit without changing the keys. I would say that constitutes overconfidence, or a lack thereof, and that's why as a listener, I don't like the meaning behind the music, therefore cannot enjoy the music as it was meant to be enjoyed.