Extracting music from game archives (hitman, gothic) .dlc, .sgt extensions

[oux]

I would like to extract original music from my best childhood games - hitman and gothic. Seems like they have the same pattern of packing game music. I google it about an hour, but haven't found a clue how to deal with these extensions.
Could someone please help me?
Here is an example: http://rgho.st/82Rj2Y2xG

[aluigi]

MIDI and soundfonts.
There have been 2 topics open just recently:
viewtopic.php?f=9&t=1859
viewtopic.php?f=6&t=6977

[oux]

MIDI and soundfonts.
There have been 2 topics open just recently:
https://zenhax.com/viewtopic.php?f=9&t=1859
https://zenhax.com/viewtopic.php?f=6&t=6977

Seems there are no answer to what to do in this situation...
Could you please help with these files? I don't know what to do with them.
I will be very gratitude if you'll help me. May be buy you a game through Steam?
I ask for help because usually I listen to Hitman music by opening the game in window mode.

[aluigi]

It's audio stuff which is not my field.
You have to wait an answer in the second topic I linked and in the meantime search on Google because there are many references about these files.