https://wccftech.com/monster-hunter-world-nier-music-mod/

This brand-new Monster Hunter World NieR music mod brings the music and menu sounds from the NieR series to Capcom’s latest Monster Hunter installment.

Created by modder ‘BeesKneesMan’, this NieR music pack completely overhauls the music in the PC version of Monster Hunter World. According to the modder, not only the music from the NieR is included, but also the menu sounds have been overhauled.