 Petersen has produced soundtracks for more than 60 planetarium shows performed in installations in more than 900 planetarium facilities in more than 50 countries around the world.He has performed several live music shows in planetariums in the U.S. and the UK, but he considers his work to be a studio creation and not particularly well-suited to live performances, as his music features multiple electronic musical instruments, difficult to operate in real time.The music of Geodesium has been featured in planetarium shows narrated by well-known screen personalities including Noah Adams, Baxter Black, Avery Brooks, Roxanne Dawson, Michael Dorn, James Earl Jones, Leonard Nimoy, William Shatner and Patrick Stewart.