These 6 songs are exclusive to the PS4 version, and presumably the upcoming PC version, and go with the new content added in the PS4 version of Ys 8.

Bought myself off of ototoy.jp


Ys VIII: Lacrimosa of Dana OST: Append Music Collection
イースVIII -Lacrimosa of DANA- オリジナルサウンドトラック 追加楽曲集
flac
351.2MB



http://vgmdb.net/album/68275

https://mega.nz/#!2UMUSSZK!W5FikkK4QSOL2ptFQyhEbd6e4CbINlDR2mSjrLdW4zs

Also here's the MP3 version.

http://www.mediafire.com/file/3grur8m3fdvcjn7/Ys+VIII+PS4+New+Music+%28MP3s%29.rar

Thank you! I had no idea they were releasing the songs from the PS4 version, and so soon at that!