Well, nice map. Love the song.
I know the original song is quite old and so maybe it comes from the remix itself, which i doubt, but have a look :
See ? Constant 16K signal, hurting my ears so much :/
If you dont hear it while playing either your audio card / headphones suck hard or your ears are completly destroyed..
EDIT : I removed this 16K signal. You can download the audio
here. It is FLAC format, but if ever you want to update the mp3 file with the non ear-hurting one, you'll have to encode it again. Take care since i did Lossy+Changes->LossLess. So you're going to do Lossy->Lossy so take a big mp3 bitrate to lower the quality loss.