View Sophie Song, CFA’S profile on LinkedIn, the world's largest professional community. 29 Tracks. Sophie has 6 jobs listed on their profile. 91675 Followers. Stream Tracks and Playlists from SOPHIE on your desktop or mobile device. MAIL SOPHIE@MSMSMSM.COM . Sophie Long (also known as Sophie Xeon) is a Los Angeles based record producer, singer, songwriter and DJ who works under the name Sophie (stylised as SOPHIE).