Is that really new bytecoin site? What's happend to bytecoin.biz?

Moreover music is weird!

No that's not our bytecoin! They copied us
Algo: CryptoNight;
Block reward decreases each block according to the formula:
BaseReward = (MSupply - A)/218
where MSupply = (264 - 1) atomic units and 'A' is amount of already generated coins;
I'm not sure that they copied us.