Here's the pertinent lines from the original levels along with the
script that plays the music for the levels...

# Jedi Knight Cog Script
#
#
# [YB]
#
# (C) 1997 LucasArts Entertainment Co. All Rights Reserved
# Play soundtrack for level
symbols
message		startup

int		starttrack		desc=track_to_start_on
int		endtrack		desc=end_of_range
int		loopto			desc_track_to_loop_back_to
end

code
startup:
	playsong(starttrack, endtrack, loopto);
	return;
end

/mnt/DOS/djgpp/Source/jkl2map/Extracted GOB/jk1.gob/jkl/02narshadda.jkl:0:    00_soundtrack.cog  3 3 2
/mnt/DOS/djgpp/Source/jkl2map/Extracted GOB/jk1.gob/jkl/03katarn.jkl:24:      00_soundtrack.cog  4 5 4
/mnt/DOS/djgpp/Source/jkl2map/Extracted GOB/jk1.gob/jkl/04escapehouse.jkl:150:00_soundtrack.cog  5 5 4
/mnt/DOS/djgpp/Source/jkl2map/Extracted GOB/jk1.gob/jkl/06bbarons.jkl:2:      00_soundtrack.cog  2 3 2
/mnt/DOS/djgpp/Source/jkl2map/Extracted GOB/jk1.gob/jkl/07yun.jkl:1:          00_soundtrack.cog  8 8 8
/mnt/DOS/djgpp/Source/jkl2map/Extracted GOB/jk1.gob/jkl/08escape88.jkl:35:    00_soundtrack.cog  7 7 6
/mnt/DOS/djgpp/Source/jkl2map/Extracted GOB/jk1.gob/jkl/10cargo.jkl:26:       00_soundtrack.cog  3 4 2
/mnt/DOS/djgpp/Source/jkl2map/Extracted GOB/jk1.gob/jkl/11gorc.jkl:1:         00_soundtrack.cog  8 8 8
/mnt/DOS/djgpp/Source/jkl2map/Extracted GOB/jk1.gob/jkl/12escape.jkl:29:      00_soundtrack.cog  4 4 2
/mnt/DOS/djgpp/Source/jkl2map/Extracted GOB/jk1.gob/jkl/14tower.jkl:37:       00_soundtrack.cog  5 7 5
/mnt/DOS/djgpp/Source/jkl2map/Extracted GOB/jk1.gob/jkl/15maw.jkl:4:          00_soundtrack.cog  9 9 9
/mnt/DOS/djgpp/Source/jkl2map/Extracted GOB/jk1.gob/jkl/16aescapeship.jkl:30: 00_soundtrack.cog  8 8 8
/mnt/DOS/djgpp/Source/jkl2map/Extracted GOB/jk1.gob/jkl/16bescapeship.jkl:30: 00_soundtrack.cog  8 8 8
/mnt/DOS/djgpp/Source/jkl2map/Extracted GOB/jk1.gob/jkl/17asarris.jkl:2:      00_soundtrack.cog  10 10 10
/mnt/DOS/djgpp/Source/jkl2map/Extracted GOB/jk1.gob/jkl/17bsarris.jkl:1:      00_soundtrack.cog  10 10 10
/mnt/DOS/djgpp/Source/jkl2map/Extracted GOB/jk1.gob/jkl/18ascend.jkl:57:      00_soundtrack.cog  6 7 5
/mnt/DOS/djgpp/Source/jkl2map/Extracted GOB/jk1.gob/jkl/19a.jkl:37:           00_soundtrack.cog  7 7 5
/mnt/DOS/djgpp/Source/jkl2map/Extracted GOB/jk1.gob/jkl/19b.jkl:13:           00_soundtrack.cog  7 7 5
/mnt/DOS/djgpp/Source/jkl2map/Extracted GOB/jk1.gob/jkl/20aboc.jkl:1:         00_soundtrack.cog  11 11 11
/mnt/DOS/djgpp/Source/jkl2map/Extracted GOB/jk1.gob/jkl/20bboc.jkl:1:         00_soundtrack.cog  11 11 11
/mnt/DOS/djgpp/Source/jkl2map/Extracted GOB/jk1.gob/jkl/21ajerec.jkl:0:       00_soundtrack.cog  12 12 12
/mnt/DOS/djgpp/Source/jkl2map/Extracted GOB/jk1.gob/jkl/21bjerec.jkl:0:       00_soundtrack.cog  12 12 12