The stand-alone mod S.T.A.L.K.E.R. Anomaly aims to be the most stable and customizable experience for fans of the S.T.A.L.K.E.R. games. It's powered by the Monolith 64-bit engine, a custom fork of the X-Ray engine.
Some rock music Firelake did probably for beta SOC, I liked it and I decided to make an addon for it to replace the menu music, the file is named _anomaly_The_Mark_Has_Been_Made because I used Maid's EFP menu addon in MO2 for the name, I am not sure what's og menu music of anomaly file called IMPORTANT NOTE: If you're not using EFP 3.0 then rename the file to _anomaly_ilya_ponomarenko_day_one (Thanks for MarQ for telling me this, I'll update it later)
You can just name the audio file to _anomaly_ilya_ponomarenko_day_one and it works without the XML for Maid's EFP menu.