Timothy Lawrence Nelson, known professionally as Karma Fields and TimFromTheHouse, is an American musician, DJ, and record producer from Santa Barbara, California, currently based in Los Angeles.

Having started off producing music as Betatraxx, Nelson signed to Monstercat in 2015 as Karma Fields and released his debut album, New Age | Dark Age, one year later. His second album, BODY RUSH, was self-released in 2019.

Nelson is also a member of electronic supergroup Associanu.

Origins Nelson began uploading remixes of popular songs to YouTube in 2009, under the name TheRedlightRemixes. His first upload was a remix of Beyoncé's Control.

2010-2014: Betatraxx Having started uploading music to his YouTube channel, Nelson began using the name "Redlight Betatraxx", before eventually deciding to exclusively use Betatraxx (occasionally stylized as BetaTraxx or BetatraXx) as his name in 2010.

Nelson uploaded his first original track as Betatraxx, LA Bass, on March 21, 2010. On July 8 of the same year, his self-titled first EP was released. His second EP, Drug Abuse/Mafiosa EP, was released on January 30, 2011. Shortly after, Nelson released The X EP on February 15.

Nearly a year later on February 27, 2012, Nelson returned with the single Shuffling and Looking Dumb, with vocals from Krystal. On May 1, Nelson released his remix of fun. & Janelle Monáe's We Are Young, his first official remix as Betatraxx. Two weeks later, his remix of Christina Perri's Arms was released, his second official remix. On September 25, Nelson released the Mercury EP. Nelson's final release of 2012 was a remix of The Joy Formidable's Cholla.

On June 5, 2013, Nelson released a remix of Wiz Khalifa's No Sleep. On August 8, Nelson's collaboration with Welsh singer MARINA (then known as Marina and the Diamonds), Electra Heart, was uploaded onto Diamandis' channel. Nearly a month later, Nelson released the "V" EP on September 3.

On May 5, 2014, a more fleshed-out version of Electra Heart was released. On May 14, Nelson uploaded a remixed version of Electra Heart, stating, "This instrumental was the original track that Electra Heart was recorded over. So while it is a 'remix' it actually existed before Electra Heart did. Although it has been totally done up to make this final version." A classical version of the song was released on June 9. Nelson released the Shapes and Sizes EP on September 30. His final release as Betatraxx was a remix of Pr0files' Forgive, released on November 12 of that year.

2015-2016: Karma Fields debut, first album, and The HEX On February 3, 2015, Nelson uploaded a teaser video for a new project, Karma Fields, to the project's YouTube channel. The teaser contained visuals by Chinese visual artist and programmer Raven Kwok (郭銳文), as well as a demo of a then-unreleased song from Karma Fields' upcoming debut album.

Later that month, on February 24, during the 47th episode of the Monstercat Podcast, the livestream appeared to be hacked, with a trailer for the music video of Karma Fields' debut song, Build The Cities, featuring Estonian singer Kerli, interrupting the stream. However, this has been omitted in the official reupload of the episode, with only fan reuploads capturing it. On March 2, the music video for Build The Cities was officially released. In an interview with Billboard, Kwok explained, "Every time I run the system, it will produce a different visual outcome due to randomness of the initial parameters, so the music video itself is an organized yet unpredicted outcome."

On April 9, Nelson announced that "reconstructions" of Build The Cities were in the works. Later that month, a series of remixes were released by various artists, including fellow labelmates Tristam, Grabbitz, and Project 46, among others. The full remix compilation, titled Build The Cities (Reconstructions), was released on May 27.

On September 14, the second Karma Fields single, Skyline, was announced. Three days later, Nelson posted a preview of the "beta" version of Skyline. Skyline was officially released on September 21. Like Build The Cities, Skyline's music video was also created by Kwok. It was widely noted by fans that the beta version and the official version were almost completely different from each other.

The official Karma Fields website was launched on September 28.

To commemorate Build The Cities' music video reaching one million views, stems for the song were released on October 24. The following day, an acoustic version of Skyline was announced, which was released six days later. Many were quick to notice that the acoustic version was the same as the beta version that was previewed before Skyline's official release.

The third Karma Fields single, Stickup, a collaboration between Nelson, Danish producer MORTEN (who Nelson had previously collaborated with while still releasing music as Betatraxx), and American actress and singer Juliette Lewis was announced on November 25. Stickup was released five days later, along with another music video animated by Kwok. The song was notable in its departure from the previous singles, with its sound being much more intense and aggressive. A drum and bass remix by English electronic music act Modestep was released on December 1.

Karma Fields' debut album, New Age | Dark Age, was announced on January 5, 2016. Between January 11 and January 26, the tracklist was gradually revealed, totaling at twelve tracks. The album's fourth and final single, Greatness, a collaboration with American rapper Talib Kweli, was announced on February 2, and officially released alongside yet another video by Kwok on February 17. Nelson announced that the release date for New Age | Dark Age would be March 2, exactly one year after the release of Build The Cities. On April 5, an album-long video was uploaded, which contained all prior music videos, as well as additional visuals, all created by Kwok.

On April 7, Nelson released his first remix as Karma Fields, a rework of Janet Jackson's No Sleeep.

On April 13, UKF released an article on Karma Fields, speculating on who or what Karma Fields was. The article declared that Karma Fields was the "world's first AI artist" and that a machine had been behind all the music (excluding vocalists). The article also included an interview with Kwok, who gave further insight into how the visuals were made, explaining how all of the visuals are coded instead of traditionally animated.

After posting various gifs of visuals throughout July, a trailer for Karma Fields' live debut was uploaded on August 2. On September 7, sheet music was provided for classical versions of Stickup and Build The Cities. The following day, a deluxe version of New Age | Dark Age was announced, alongside the release of the aforementioned classical version of Build The Cities. A competition was announced September 9, where people could submit videos of themselves playing either classical versions of Stickup or Build The Cities. The winner would receive a signed vinyl of New Age | Dark Age, as well as have their entry shared with the Monstercat community. The deluxe version of New Age | Dark Age was released on September 15, containing five classical versions of various songs from the album.

On September 27, a thirteen minute preview of Karma Fields' live show, The HEX, was uploaded to YouTube. The preview shows Nelson performing inside of a hexagonal structure, with synchronized visuals projected onto all six sides. The debut show's date was also announced to be November 10 in Los Angeles. On the same day, Nelson's first official interview as Karma Fields was posted to Billboard's website. Nelson stated that the plan for Karma Fields was to "blur the line between human and computer" and have the project gradually evolve from a computer side to a more human side.

Karma Fields' first material since the deluxe version of New Age | Dark Age was announced on October 25. Between October 28 and November 3, the song Sweat, as well as two remixes by Soulji and Bixel Boys, was released. This would end up being Nelson's last release with Monstercat.

2017: Post-Monstercat On April 11, 2017, Nelson announced a second HEX show for April 29, this time at New York City's Webster Hall. Three days later, as a way of promoting the upcoming show, a recording of the live version of Scandal (a collaboration with American actress and singer C.C. Sheffield) from New Age | Dark Age was released.

On June 15, Nelson announced his first song since leaving Monstercat. Shapes, with Australian producer L D R U, was released on July 14.

The third HEX show was scheduled to be in Vancouver on November 24, with Soulji as the opening act.

2018-2019: BODY RUSH

After 5 months of silence on all social media, Karma Fields reappeared on March 19, 2018. Over the span of a minute, eight tweets were sent out from the Karma Fields twitter account, with all tweets directly mentioning Swedish singer Tove Lo, as well as including a phone number. Calling the number would reveal snippets of an unreleased song, presumed to be a collaboration between the two. One week later, the song, whose title was revealed as Colorblind, was released. Tove Lo stated, "This song is about losing someone you love[...]after a big breakup, the pain in your heart is similar to the pain you feel when someone dies — they’re not in your life anymore. There’s an anger and also a numbness that sets in when you feel left behind, abandoned." The visuals for Colorblind were by Polish artist Patryk Kizny.

On May 8, two remixes of Colorblind by Motez and Left/Right were released.

On May 23, the single Body Rush was announced. It was written in collaboration with Millennial Serial Killer, the solo project of Lauren Pardini of Pr0files, who Nelson had remixed as Betatraxx nearly four years prior. Two days later, Body Rush was released. The video for it included footage sourced from a real world space, multiple references to past Karma Fields music videos, and the inclusion of "DENOUNCE YOUR HUMANITY" written on a wall.

Between July 9 and July 11, Nelson posted one video on each day, teasing another new song. On July 12, the song, titled CODE 10-31, was released, with the title referencing the police code that roughly (police codes vary by county and state) means "crime in progress".

On July 25, Nelson teased a collaboration with English musician Little Boots, whom he had also remixed as Betatraxx. The song (released as part of an EP), You and Me, was released on July 27. The additional song, Midnight Drive, contains uncredited vocals from Pardini. A remix EP with remixes from Soulji and Louis La Roche was released on August 10, with Soulji's being his second remix for Nelson so far.

A small tour of The HEX was announced on August 9. The HEX was to make stops at San Francisco, Los Angeles, and Washington, D.C. on September 15, September 21, and September 28/29 respectively. A remix of Colorblind by OddKidOut was released on August 24. On September 5, Nelson uploaded a video detailing how The HEX was constructed, with a then-unknown song playing in the background.

Nelson revealed on November 15 that he had contributed a Karma Fields remix of WTF Love Is to the deluxe vinyl edition of Tove Lo's Lady Wood, and that it would be exclusive to the vinyl release.

Five days later, another single, An Underground System of Forgotten Machines, was announced. In the accompanying trailer, it was revealed that this was the song playing in the background of the HEX construction video. It was released on November 23.

On February 19, 2019, Nelson uploaded a trailer for the second Karma Fields album, BODY RUSH, with a release date of March 15 being given. The trailer contained real-world footage of social unrest, robots, and numerous clips from news stations such as FOX, CNN, and MSNBC, depicting the rise of the "Body Rush procedure" and the ensuing societal polarization.