Both tracks are available for streaming on the DLsite page, giving you a taste before purchase.
The keyword you've provided appears to be a mix of Japanese characters and alphanumeric codes, likely referring to a specific title of a doujinshi (a type of self-published work in Japan, often related to manga, anime, or other forms of Japanese popular culture). The characters translate to "Mirror's Imp and Devil's Seed" in English, which might give a hint about the content.
https://www.dlsite.com/maniax/work/=/product_id/RJ01264927.html