The piece you are looking for is titled "From the Ashes" by The Infinite Source. This track was specifically released as an "Epic Rap" for God of War: Ascension. "From the Ashes" Lyrics Highlights Chorus:
Regarding the rap file update, I couldn't find any specific information on a rap file related to God of War: Ascension. However, I can suggest that a rap file might refer to a music file or a soundtrack update for the game. god of war ascension rap file updated
While the core game hasn't changed since its 2013 release, "updated" RAP files often refer to those compatible with the latest game patches—such as the final version 1.12—or specific digital editions like the Ultimate Edition. The piece you are looking for is titled
Aldos Tools (PS3 File System) or Multiman File Manager to toggle hidden files. Navigate to /dev_hdd0/home/00000001/exdata/. Delete any file named UP9000-NPUA80916*.rap then re-import the updated version..rap file in RPCS3\dev_hdd0\home\00000001\exdata\File > Install RAP menu.Depending on your platform, here is how you typically apply the license: On PS3 (CFW or HEN): Why: You have a corrupt old rap file
The focus on updating and maintaining these files is driven largely by the preservation community. Since God of War: Ascension features a heavy emphasis on online multiplayer—a service Sony could eventually shutter entirely—the RAP file is the only bridge to keeping the single-player campaign playable on alternative hardware.