This mod is a remake of the OST and ambience tracks for the first game. The entire soundtrack and background ambience sound have been updated.

The original soundtrack was mainly replaced with their performance by the Royal Philarmonic Orchestra. Ambience sounds kept the original backing track but are now mixed with a more consistent and present ambience. SFX are untouched. The secret chimes have been updated.
I tried to keep the original vibe of the game with a very silent ambience. Track 9 has never been played by the Royal Philarmonic Orchestra so I took the liberty to switch it to a different song that keeps the same vibe because the original have old samples.
Some short tracks with choir have been replaced with their counterpart from Tomb Raider Anniversary to keep the 1:1 music upgrade as close as possible.


*Song list* ("original song" => "remastered song")


2 - Tomb Raider Theme => Tomb Raider Theme (Orchestra)
3 - Tomb of Tihocan => Waterfall from Tomb Raider Anniversary (TRA)
4 - Shorter version of track 2 => Tomb Raider Theme (Orchestra), trimmed.
5 - The Caves (ambience) => Cave ambience music by LittleRobotSoundFactory (copyright free) mixed with the original ambience sound for fidelity reasons
6 - Jacqueline Natla (final boss theme) => Time to Run (Orchestra) full version
7 - St. Francis Folly => A Friend Since Gone (Orchestra) (Alternative name of St. Francis Folly track)
8 - Showdown (battle theme) => Raptor Theme from TRA (1:1 reproduction) 
9 - Peruvian Caves => Ghostly Presence by Two Steps from Hell (this one has a very mysterious vibe and I couldn't find anything else suitable. If you wish to keep the original song, do not copy and paste the file "9")
10 - The Plot Thickens => Longing for Home (Orchestra) (Alternative name of "The Plot Thickens")
11 - Anticipation => *unchanged*
12 - Danger => *unchanged*
13 - Secret => Secret Chimes from TRA (altered pitch)
14 - Revealed => *unchanged*
15 - Tomb of Qualopec => Tomb of Qualopec from TRA
16 - Gruesome Encounter (T-Rex theme) => T-Rex Theme (Orchestra), shortened
17 - The Lost Valley => Where the Depths Unfold (Orchestra) 
18 - Sanctuary of the Scion => Where the Depths Unfold (Orchestra) (this song is a compilation of The Lost Valley and Sanctuary of the Scion so I just trimmed the song into two different tracks)
19 - Authentic Tomb Raider => Tomb Raider Theme (Orchestra) trimmed (this track is actually the middle part of the Main Theme)
20 - Time to Run => Time to Run (Orchestra) shortened (Track 6 and 20 are almost the same song so I kept this characteristic)
21 - Epilogue => Longing for Home (Orchestra) trimmed (Track 10 and 21 are the same, 10 is the long version)
57 - The Cistern (ambience) => Tomb of Tihocan (ambience noise) from TRA
58 - Greece (ambience) => Desert ambience sound (copyright free) by Sound Diary
59 - The Great Pyramid (ambience) => Inside a Monster by TheAmbienceChannel (copyright free) mixed with the original ambience (sounds of heartbeat) for fidelity reasons

*Installation*

1 - Find the TRACKS folder of Tomb Raider 1 at C:\Programs\steamapps\common\Tomb Raider I-III Remastered\1\TRACKS
2 - Make a backup of the TRACKS folder (copy and paste it somewhere else so you can reinstall the original tracks if you want)
3 - Copy the content of the MODDED TRACKS folder you've downloaded.
4 - Paste it in that TRACKS folder you made a backup of (at C:\Programs\steamapps\common\Tomb Raider I-III Remastered\1\TRACKS)
5 - Your system will ask you if you wish to replace the files. Select "yes". Done!

All rights to the original composers. If you do NOT want your music to be featured in this mod, please inform me as soon as you can!