The 'sequence' param is what you're looking for.

PHP Code:
name,sequence,file,vol_min,vol_max,vol_mod,pitch_min,pitch_max,dist_min,dist_max,channel,type,probability,loop,masterslave,loadspec,subtitle,compression,secondaryaliasname,volumefalloffcurve,startdelay,speakermap,reverb,lfe percentage

dr_music,1,music/88ridge_approaching_ridge2_GRFINAL.mp3,,,,,,,,music,streamed,,,,all_mp,,,,,,local
dr_music,2,music/british_action_artillery_GRFINAL.mp3,,,,,,,,music,streamed,,,,all_mp,,,,,,local
dr_music,3,music/british_decoytown_intro_short_GRFINAL.mp3,,,,,,,,music,streamed,,,,all_mp,,,,,,local
dr_music,4,music/british_decoytrenches_dump2_GRFINAL.mp3,,,,,,,,music,streamed,,,,all_mp,,,,,,local
dr_music,5,music/demolition_soviet_charge_GRFINAL.mp3,,,,,,,,music,streamed,,,,all_mp,,,,,,local
dr_music,6,music/downtownsniper_soviet_tension_GRFINAL.mp3,,,,,,,,music,streamed,,,,all_mp,,,,,,local
dr_music,7,music/libya_charge_crusader_long_GRFINAL.mp3,,,,,,,,music,streamed,,,,all_mp,,,,,,local
dr_music,8,music/toujane_armoredcar_crash_GRFINAL.mp3,,,,,,,,music,streamed,,,,all_mp,,,,,,local
dr_music,9,music/toujane_vehicle_danger_loop_GRFINAL.mp3,,,,,,,,music,streamed,,,,all_mp,,,,,,local
dr_music,10,music/toujane_vehicle_ride_GRFINAL.mp3,,,,,,,,music,streamed,,,,all_mp,,,,,,local