Fortunately Shadow Warrior (1997) is free on Steam.
https://store.steampowered.com/app/238070/Sha … r_Classic_1997/
AwServant, if you've first run Shadow Warrior's setup tool, then choose MIDI music on port 330 for your music driver.
Then ensure MIDI is setup in your DOSBox configuration (.conf) file. First couple hits on Google for "DOSBox midi" will help.
Also note that if you're running Linux, you'll need a MIDI player (like QSynth or Timidity++), or supported via the kernel's sequencer interface.
If you get further and still have issues, let us know these details (operating system, midi player, etc) so we might provide working examples.