Pretty good OST, and pretty interesting game, which is made by a lot of music composers.
Music made by: Mace, Shower, Nana Yakayama and Ouka Shinomura, Yoiyami, Ryuuou, HAMRIKU, Minatsuki, Monday, Francium, KAI, Yoko Yasha, Io-kun, Wanwan, 古山智之(khirio), Prism, Misora, Koshian, ido,

BoSM Stage 4 Boss - Ichiyou Mochizuki's Theme - Nine Luminaries of Amaterasu ~ Sunlight Burst

Dr. Latency's Freak Report

DLFR-The Shining Needle Castle Sinking in the Air

DLFR-Beyond Planck in an Instant

DLFR-Natural History of the Childlike Duo

Ghostly Field Club

GFC-Eternal Festival of Illusions [Original]

¹DâÕ ` Trojan Green Asteroid

TGA-UFO Romance in the Night Sky

旧約酒場　～ Dateless Bar "Old Adam"

DBOA-Rural Makai City Esoteria

DBOA-Reverse Ideology

DBOA-The Darkness Brought In by Swallowstone Naturalis Historia

DBOA-Hangover of Bedfellows Dreaming Differently

Retrospective 53 Minutes

R53M-Gensokyo Millennium ~ History of the Moon

DLFR-Beyond Planck in an Instant

Tenshi 1