Sony released today the Original Soundtrack Album of The Last Guardian PlayStation 4 game in Japan. The OST collects all the songs from the already released game.
You will find 24 tracks on the CD which costs in Japan 2800 Yen + tax.
Available in all the big stores in Japan. Here you can find the tracklist and the cover in the gallery.

01. Overture: Lore
02. Panorama
03. Forest
04. Sentinel I
05. The Tower
06. Falling Bridge
07. Hanging Gardens
08. Sentinel II
09. Victorious
10. Alone
11. The Nest
12. Flashback
13. Sanctuary
14. Condor Clash
15. Wounded
16. Finale I: Apex
17. Finale II: Escape
18. End Titles: The Last Guardian Suite
19. Epilogue
20. Homeward
21. The Cage
22. Vanquished
23. Mirrors
24. Courtyard