Simon Hale is a British composer, arranger, and keyboardist.

Brian Wayne Transeau, known by his initials as BT, is an American musician, DJ, singer, songwriter, record producer, composer, and audio engineer. An artist in the electronic music genre, he is credited as a pioneer of the trance and intelligent dance music styles that paved the way for EDM, and for "stretching electronic music to its technical breaking point." In 2010, he was nominated for a Grammy Award for Best Electronic/Dance Album for These Hopeful Machines. He creates music within myriad styles, such as classical, film composition, and bass music.