Yay, this is the first ever music add-on i've done thats nearly a perfect loop, you can kinda hear a skip when it repeats
Its the song Ultimate Showdown of Ultimate Destiny by Lemon Demon :D
Put it in Add-Ons/Music and start a server and hit the Music button and check Ultimate Showdown of Ultimate Destiny then take out the wrench after you're server started and use the wrench on the music brick (In the Brick menu (B button) in the Specials tab) and select Ultimate Showdown of Ultimate Destiny
Important note: Please rename the .ogg to Ultimate_Showdown_of_Ultimate _Destiny, in other words, just replace the spaces with _ otherwise it will not show up in game!