Bradford James Cox (born May 15, 1982) is an American musician best known as the lead singer and guitarist of Atlanta, Georgia-based psychedelic and ambient band Deerhunter. He also pursues a solo career under the moniker Atlas Sound. Cox formed Deerhunter with drummer Moses Archuleta in 2001. The band has released 5 LPs along with several singles and EPs. Atlas Sound is a name Cox has used since he was ten to refer to his own music, but his first full-length produced under the name was Let the Blind Lead Those Who Can See but Cannot Feel, released in 2008. Cox's method of creating music is stream-of-consciousness, and he does not write lyrics in advance.

"Atlas Sound" is the musical solo project of Cox, although he has used the name to represent his music since he was a child. He had access to a cassette player with two tape decks, which he used to layer guitar and drum sounds, and his own voice. In listening to some of these old tapes (of which Cox believes he has over five hundred in storage) he found "Some of it is absolutely, terrifyingly bad, but sometimes I'm just like, 'Wow, that's cool.' That's actually how some Deerhunter songs happened. 'Spring Hall Convert' [from Cryptograms] was like that. That was a tape I made in ninth or tenth grade." Cox writes his music stream-of-consciousness, not writing lyrics in advance, and constructing songs by adding more parts until he feels "it's getting crowded." The name of his project is derived from the brand of tape player he used, Atlas Sound.

Cox began Atlas Sound in the wake of his work with Deerhunter because "I have ideas that I can't make work with a five piece rock band...There's kind of this palette of sounds that I use that I don't necessarily get to use with Deerhunter."[3] Because the music Deerhunter makes is a collaborative effort, Cox does not want to assert himself as its principal songwriter. "I might have an idea for a fragment of a song, but I want to leave it skeletal so the guys can fill it out. Whereas with Atlas Sound, everything is done in an hour." Cox created the music for his first record in the software Ableton Live, utilizing an array of computer-based instruments, as well as his own live recordings.

To date, there have been six full-length releases by Cox as Atlas Sound: Let the Blind Lead Those Who Can See but Cannot Feel in 2008, Logos in 2009, and Bedroom Databank in 2010, which is separated into four different albums. The lyrics of Let the Blind Lead are autobiographical in nature, reflecting life experiences of Cox. In discussing his second album, Cox characterized his first as being a "bedroom laptop type thing" and "Very introverted." In contrast, Logos was written in several parts of the world, and is "not about me. There are collaborations with other musicians. The lyrics are not autobiographical. The view is a lot more panoramic and less close-up. I became bored with introspection."[5] An unfinished version of Logos was leaked onto the internet in August 2008, over a year before its release date. In response, Cox almost ceased production on the record, later saying "I did not react well to the leak, in retrospect. It became the kind of internet-fueled drama that I was quickly learning to despise."

In late 2010, Cox published four volumes of demos on his blog, entitled "Bedroom Databank". These demos were taken down from Mediafire by Sony, but they later apoligized to Cox, stating that they "were mistakenly removed".[7][8] Atlas Sound has been chosen by Animal Collective to perform at the All Tomorrow's Parties festival that they will curate in May 2011.