90's Power Rock Right Here
By Shiroe the Enchanter
This album was arranged by Ryo Yonemitsu, who arranged a lot of game soundtracks for the PC-Engine (as well as many anime soundtracks). The Perfect Collection Ys IV CDs have the same music found on the rebook audio of the PC-Engine game (which never made it to the U.S. TurboGrafx-16 system). These audio CDs were so rare that they were going for $100+ on eBay during the first dot com.
The musical style is mostly power rock using synthesizers common in the early 90s. The power rock is intense. Even the softer songs have vigor.
About the only drawback for some listeners is the fact that the synthesizer samples may feel "dated." If that's the case, you may want to look at Ys Foliage in Celceta, which is a canon remake of Ys IV. A little over half of the songs from the Perfect Collection Ys IV are present in that version with more modern arrangements and instrument variety.
But, for the price this digital album is listed at, you can't go wrong in getting this album.