Music moves at breakneck speed in the 21st century, and keeping up can feel like a marathon through ever‑shifting soundscapes. Thanks to cheap recording gear and powerful home‑studio software, anyone can drop a track, which means fresh genres pop up faster than you can say “remix.” Below we dive into ten niche 21st‑century music styles most listeners have never encountered.
10 Black MIDI
Why Black MIDI Dominates the 21st‑Century Digital Playground
Warning: Do not watch black MIDI videos if you are epileptic!
When the Musical Instrument Digital Interface (MIDI) arrived in the 1980s, it gave electronic instruments a common language, letting computers control pitch, tempo, and countless other parameters with a single button press. Today, MIDI is everywhere in pop and electronic music.
Black MIDI pushes the concept to an extreme: cram as many notes as humanly possible into a single composition. The movement started in 2009 when users of a Japanese video‑sharing site began uploading Synthesia‑based piano renditions of anime and video‑game themes.
What began as a teen hobby exploded into a full‑blown internet phenomenon. “Blackers,” as the community calls themselves, have built tight‑knit forums, released hundreds of tracks, and even launched their own record labels to support black MIDI creators.
Early pieces topped out at a few hundred thousand notes, but today it’s common to see compositions reaching the one‑billion‑note mark. According to the black MIDI leaderboards, Gingeas holds the current record with over one trillion notes in his track “Armageddon v2.”
Notable artists: Gingeas, RetroUniversalHT, TheSuperMarioBros2
9 Kawaii Metal
A common Western stereotype is that Japan loves everything cute. The “kawaii” (cute) aesthetic permeates food, fashion, toys, and even behavior. In 2009, a Japanese entrepreneur fused this cute culture with the crushing riffs and blast beats of metal, creating a wildly contrasting sound.
Kawaii metal traces its roots to Babymetal and the enigmatic executive Kobametal. Originally a spin‑off from the J‑pop group Sakura Gakuin, Babymetal has charted in Austria, Belgium, the Netherlands, Germany, and the United States.
The appeal lies in the clash: sparkling pop vocals sit atop Slayer‑style guitar onslaughts. The band’s eerie persona, allegedly guided by “divine messages” from a fox god of metal, adds an extra layer of intrigue. In short, they’re just exceptionally good.
Notable artists: Babymetal, Ladybaby, DOLL$BOXX
8 Lowercase
The phrase “less is more” was coined by poet Robert Browning in 1855, but it didn’t enter popular usage until architect Ludwig Mies van der Rohe championed it for minimalist design in the 1960s. Musicians later adopted the mantra, focusing on a handful of notes to craft ambience rather than traditional rhythm or melody.
Every day we’re bombarded by noise from cars, airplanes, appliances, and construction, yet subtler sounds—like wind humming or a pot boiling—often go unnoticed. Lowercase, a subgenre of minimalist electronica, elevates these microsounds and even silence into a distinct listening experience.
The genre launched in 2001 when Steve Roden released Forms of Paper, an album composed solely of rustling paper sounds. Amplified, digitized, and arranged into a haunting 54‑minute piece, the work set the template. Artists now employ field recordings of rustling leaves, breathing, distant bells, and more.
Roden told Electro Acoustic Research, “[lowercase] bears a certain sense of quiet and humility; it doesn’t demand attention, it must be discovered.” In an era of “loudness wars,” that sentiment feels refreshing.
Notable artists: Steve Roden, Richard Chartier, Alva Noto
7 Seapunk
The 2010s saw a surge of online subcultures, thanks to social media’s rapid amplification. Trends could flare up, dominate conversations for a few days, then fade into oblivion. Seapunk epitomizes that fleeting digital moment.
Dubbed a “web joke with music” by The New York Times, seapunk emerged from a group of musicians nostalgic for 1990s culture. The sound blends bouncy electronic beats with the watery tones of games like Ecco the Dolphin and Donkey Kong water levels, alongside synthesized tropical instruments such as marimbas and steel drums. The aesthetic spilled over into design, flooding the internet with turquoise hues and aquatic imagery.
In late 2012, the community erupted over Rihanna’s SNL performance of “Diamonds” and Azealia Banks’ “Atlantis” video, both of which borrowed heavily from seapunk visuals. Fans accused the pop stars of co‑opting the niche style.
Notable artists: Unicorn Kid, Blank Banshee, iamamiwhoami
6 Wizard Rock
In 1990, J.K. Rowling scribbled the premise for Harry Potter during a train ride, eventually selling over 400 million copies worldwide. The phenomenon inspired fan‑made spin‑offs, a real‑life Quidditch league, and even an entire music genre.
Wizard rock, or “Wrock,” surfaced in the US around 2002 with Massachusetts band Harry and the Potters. Since then, the movement has spread globally, spawning festivals like Wrockstock.
Wrock isn’t defined by a single musical style; instead, bands write songs from the perspective of specific Harry Potter characters, often dressing in costume for added immersion. While literary references in music aren’t new—Led Zeppelin famously mentioned Tolkien—no other franchise has birthed a full‑blown musical genre.
Notable artists: Harry and the Potters, Draco and the Malfoys, The Parselmouths
5 Witch House
Musicians have long courted the occult, from ancient shamans to 1990s Norwegian black metal bands who burned churches. In the late 2000s, a darker subgenre resurfaced: witch house.
Mixing the hazy ambience of 1980s goth acts like Cocteau Twins with hip‑hop and electronic dance beats, witch house was pioneered by Massachusetts‑based Salem on their 2010 album King Night.
The visual side draws heavily from 1990s pop culture—think The Blair Witch Project, Twin Peaks, and Charmed. Artists often use occult symbols, horror‑inspired album art, and triangles or crosses in names and titles.
Originally a reaction to chillwave’s warm, summery vibes, witch house’s releases have slowed since its peak, yet several artists have achieved worldwide recognition.
Notable artists: Salem, Crystal Castles, oOoOO, Ritualz
4 Nintendocore
For many of us who grew up in the 1980s and ’90s, Koji Kondo’s soundtracks for Super Mario and The Legend of Zelda defined our childhoods. His unforgettable melodies not only reshaped video‑game music but also rippled into the wider music industry.
Nintendocore fuses the 8‑bit chiptune sounds pioneered by Kondo with the aggression of hardcore punk and metal. Though the genre didn’t crystallize until the early 2000s, its roots lie in the 1990s: Autoclave covered a Paperboy theme, and Mr. Bungle sampled Super Mario Bros. in their debut.
The first Nintendocore album arrived in 2001 from Horse the Band, pairing heavy guitar riffs with keyboards that mimic Nintendo’s signature bleeps. The band’s frontman coined the term “Nintendocore” as a joke, but it stuck, cementing the style’s identity.
Notable artists: Horse The Band, The Advantage, Minibosses
3 Pirate Metal
Films like Peter Pan, Hook, and Pirates of the Caribbean have cemented the pirate aesthetic—beards, tattoos, and endless rum—in popular culture. Translating that image into music seemed inevitable.
Pirate metal traces its origins to Running Wild’s 1987 album Under Jolly Roger. When the band’s early satanic imagery and political lyrics fell flat with German audiences, they adopted a pirate persona that would later inspire dozens of acts.
The genre blends pirate garb, folklore, and slang with heavy metal, sometimes incorporating folk instruments such as concertinas and occasional sea chanteys. Compared with the usual somber tone of metal, pirate metal injects a jovial, swashbuckling spirit.
Notable artists: Alestorm, Running Wild, Lagerstein, Swashbuckle
2 Vaporwave
Among today’s youth, disillusionment with mainstream society is at an all‑time high. Voter turnouts are slipping, and chronic unemployment haunts many Europeans. The German term “weltschmerz” captures this cultural angst, a feeling echoed by vaporwave artists of the 2010s.
Vaporwave samples smooth jazz and lounge tracks from the 1970s onward, layering pitched vocal snippets and hazy synths. The genre emerged almost simultaneously from Daniel Lopatin and James Ferraro, whose early releases sounded eerily similar.
Beyond the sound, vaporwave boasts a distinct visual aesthetic: 1990s web‑design motifs (think Angelfire and Neocities), glitch art, Japanese characters, and inexplicable classical sculptures. The style critiques consumer culture while drenching listeners in nostalgic retro vibes.
Notable artists: Macintosh Plus, Saint Pepsi, James Ferraro, Chuck Person
1 Harsh Noise Wall
Twentieth‑century painter and composer Luigi Russolo is remembered for his manifesto “The Art of Noises,” which argued that the industrial revolution unleashed a flood of new sounds for humanity to enjoy. He felt contemporary music over‑emphasized melody and sought a noisier direction, even inventing experimental instruments called intonarumori.
Since Russolo, noise music has spawned many fringe genres, but few have reached a broad audience because human ears generally prefer neat, harmonic sounds.
Harsh Noise Wall (HNW) represents an extreme rebellion against conventional musical pleasure. It strips away melody, rhythm, and dynamics, delivering an unrelenting “wall” of cacophonous noise. The effect can be physically jarring, sometimes provoking pain or an adrenaline surge. Listener discretion is advised.
Notable artists: Vomir, The Rita, Werewolf Jerusalem