it replaces:
The main theme song and when fighting dragons with this:
Credits to Sbeast for this song https://www.youtube.com/user/sbeast64
the music when you are in the INN (the bannered mare)
Credits to Peripheric for this song https://www.youtube.com/channel/UC4gMEwha02RUNY6BmLSZTQA

Image source: quickmeme.com
INSTALLATION
just extract the music file to your skyrim/DATA folder
I don't claim any ownership of this music I just converted them to xwm format to make skyrim more lively,
Have fun killing the Dragons :)