Keiichi Sugiyama

Keiichi Sugiyama (also known as Milk-Jelly) is a composer for Sega. He did the song "Buggie Running Beeps" for Rez, which is used in Area1 of the game. Aside from Rez, Keiichi has done music for Sonic Adventure and its sequel (which explains the Rez-like song "The Supernatural" in the latter), as well as arranges of Touhou music from Touhou 14: Double Dealing Character in ZUN's magazine Strange Creators of Outer World.