A while back, LieutenantSkully managed to modify the maps to play the HL1 soundtrack in the places where they played in the original game, but the two download links in that topic have long since died.
EDIT: Faceless HECU Marine #102 is a godsend: ‘https://www.mediafire.com/download/q4dn6550bs7aqxk/Black_Mesa_-_Modified_Soundtrack_1.1.rar’
Does anyone still have these maps on their machine, and if so would you be willing to share them on file sharing sites like mega or similar? Don’t get me wrong, Joel Nielsen did a wonderful job with the soundtrack but now I wanna play the game with the classic music, only problem is the maps don’t have quite a few of the original music cues so some tracks won’t play in areas they used to (e.g. Apprehensive Short playing upon witnessing the seizure zombie in the chair in Unforeseen Consequences).
Thanks in advance!