What Is Lo-Fi Hip Hop? The Story of “Beats to Relax/Study To”

Lo-fi hip hop is the soundtrack of late-night studying: slow drums, warm jazzy chords and a soft crackle like an old record. It became one of the most popular kinds of background music in the world. Here is where it came from and what makes it sound the way it does.

What does "lo-fi" mean?

"Lo-fi" is short for low fidelity, the opposite of hi-fi. Originally it described recordings made on cheap equipment, with tape hiss and imperfect sound. In lo-fi hip hop, those imperfections are added on purpose: vinyl crackle, tape wobble, muffled highs and slightly loose timing. They make the music feel human, nostalgic and easy to leave on in the background.

The roots: boom bap and sampling

Lo-fi hip hop grew out of 1990s boom bap hip hop, where producers built beats by sampling old jazz, soul and funk records on machines like the Akai MPC and E-mu SP-1200. Groups such as A Tribe Called Quest and producers like Pete Rock made jazz samples a core part of the hip hop sound.

Two key influences: J Dilla and Nujabes

Two producers are often named as the spiritual parents of lo-fi:

• J Dilla (1974–2006), from Detroit, programmed drums that felt slightly "drunk" or behind the beat instead of perfectly on the grid. This loose, human swing is everywhere in lo-fi today. His album "Donuts" was released in 2006, days before he died.
• Nujabes (1974–2010), from Tokyo, blended hip hop beats with jazz piano, strings and gentle melodies. His work on the anime "Samurai Champloo" (2004) and his album "Modal Soul" (2005) introduced millions of listeners to this mellow, jazzy style.

Producers such as Madlib and MF DOOM’s instrumental work also shaped the sound.

SoundCloud, YouTube and the 24/7 stream

In the early 2010s, young producers shared short, mellow instrumental beats on SoundCloud and Bandcamp. In the mid-2010s, YouTube channels began running live streams that played lo-fi beats 24 hours a day, usually with a looping anime-style animation. The best known is the channel now called Lofi Girl (formerly ChilledCow), whose stream of a girl studying by a window became an internet icon. When the stream was briefly taken down by a false copyright claim in 2022, it made headlines around the world.

Streaming playlists on Spotify and Apple Music then turned lo-fi into a daily habit for students and remote workers.

What makes a beat sound "lo-fi"?

• Slow tempo: usually around 70–90 BPM.
• Jazzy chords: seventh and ninth chords played on piano, Rhodes electric piano or guitar.
• Swung, laid-back drums: soft kicks, snappy snares and hi-hats that are a little off the grid.
• Texture: vinyl crackle, tape hiss, rain sounds or room noise.
• Filtering: a low-pass filter cuts the brightest frequencies so nothing feels harsh.
• Short loops: a 2–4 bar idea repeated with small changes, so the music never demands attention.

Why lo-fi helps people focus

There is no magic formula, but lo-fi has several features that make it good background music: it has no lyrics to pull your attention, a steady tempo, few sudden changes and a soft, narrow sound. It also masks background noise like conversations or traffic. For many people it becomes a cue: when the beats start, it is time to work.

Lo-fi today

Lo-fi has branched into many moods: lo-fi jazz, sleepy lo-fi, lo-fi piano, chillhop, Japanese city-pop flavoured beats and seasonal playlists. Many listeners pair it with a Pomodoro focus timer or with rain sounds.

Want to make your own? Read our step-by-step guide on how to make lo-fi beats.