Alright, so I found an hdi of Coprse Party, but while playing I can only hear sound effects, no music. How do I fix this? Here's the place that I found it.
http://www.emu999.net/rom/PC98/2011/40849.html
It's crawling with false download buttons, so here's the direct link to the file.
http://ftp1.emu999.net/PC98/Corpse-Party_(J).rar