I've just released Glidos v1.39. This version, with the aid of Kevin Bracey's patched Tomb.exe, allows you to hear the entire set of sound tracks that appeared on the PS1 verion of Tomb raider. All you need to do is:

1) Install Glidos v1.39 or later.

2) Install Tomb Raider using the preconfigured archive of Tomb Raider for Glidos.

3) Install the Audio Pack

4) Adjust Glidos's Audio settings, changing the Redbook setting to MP3.