This is the second boss piece that prominently features Japanese instruments. Japanese musical instruments have been used in festivals and Shinto rituals since ancient times, and they give the impression of sacredness, solemnity, and gravitas. This music is suitable for a particular scene in the game, which I cannot disclose due to the risk of spoilers.
Catchy, quirky, and laced with beloved leitmotifs, the OST to Deltarune's second chapter solidifies Toby Fox's status as a VGM big shot. Bandcamp New & Notable Sep 29, 2021