Monday, December 17, 2018

Potion - "Real Teen Wolves" (guitar playthrough)

Guitar playthrough from Potion, featuring members of Antarctica / Car Made of Glass / TEBOTJF, and ex-Embryonic Devourment.

Thursday, December 6, 2018

Mathcast Episode 27: 12/5/18

This is the 27th episode of Mathcast, in which we discuss ATKA, The Arusha Accord, Hemwick, Auteur, Methwitch, Operation Kino, Anna Sage, A Dozen Black Roses, Stress, Kodos, revisit Chamber, and interview one of our very favorite bands, Delta Sleep.

Monday, November 12, 2018

EXCLUSIVE PREMIERE: Car Made of Glass - "Incorporating Human Cognitive Biases in a Probabilistic Model of Retweeting"

Mathcore Index Presents: Car Made of Glass - "Incorporating Human Cognitive Biases in a Probabilistic Model of Retweeting"

Friday, November 9, 2018

Mathcast Episode 26: 11/1/18

This is the 26th episode of Mathcast, in which we discuss Soaked In Disillusion, The Nietzsche, Pool Kids, Permanent Tension, Outbred, Zapruder, Seimugen Houtai, Cortez, Five Pound Pocket Universe, Bave, Baring Teeth, and lose 10 bands worth of dialog.

Listen on iTunes.

Thursday, October 18, 2018

Interview with Pedram Valiani of Frontierer

 Mathcore Index correspondent Kay Davies interviews Pedram Valiani of Frontierer and Sectioned.

Monday, October 15, 2018

Car Bomb - live @ Mathcore Index Fest 2018

Car Bomb's full 50 minute headlining set from Mathcore Index Fest 2018, their only performance of 2018.

Friday, October 5, 2018

Mathcast Episode 25: 10/5/18

This is the 25th and 2 year anniversary episode of Mathcast, in which we discuss Faus, Carnivores at Grace, The Threats, Nesh, The Dawn, Noise Trail Immersion, revisit Jesus Horse, Euclid C Finder, and Snooze, and recap our favorite bands from the last year of podcasting.

Sunday, September 30, 2018

An Albatross - live at Mathcore Index Fest 2018

Philadelphia based experimental noisecore act An Albatross' energetic full set from Mathcore Index Fest 2018, featuring a new song off their forthcoming EP, "Return of the Lazer Viking."

Thursday, September 27, 2018

Fero Lux - live at Mathcore Index Fest 2018

Floridian post-hardcore / mathcore act Fero Lux’s epic 40 minute set from Mathcore Index Fest 2018, complete with a cover of Botch’s classic “Saint Matthew Returns to the Womb.”

Saturday, September 22, 2018

Mathoween 2018


Join us on Halloween night at The Footlight in Queens for a very special cover performance, Mathoween 2018, featuring:

Semaphore (Juan Bond, Detach the Islands) as The Dillinger Escape PlanDead Empires as Limp Bizket (go ahead, laugh), and Strange Changes performing other assorted mathcore goodies!

Event page:

Wednesday, September 19, 2018

Mathcore Index: Volume 5

Very proud to present to you our 5th compilation, Mathcore Index: Volume 5, featuring over 20 of the finest artists in underground music. Art by Karl Frandsen, graphic design by APBT, and original logo by Keith Carlson. Special thanks to Choke Artist, Good Fight Music, Holy Roar Records, Noise Salvation, and Silent Pendulum Records. 

Release date: 9/19/18
Format: digital, free

Artist listing:
1. Accident Prone
2. BTK (Bind Torture Kill)
3. Black Matter Device
4. The Callous Daoboys
5. Carnival Ghosts*
6. Cleric.
7. Closet Witch
8. Coarse
9. Cryptodira
10. Dead Empires
12. FAUS
13. Fawn Limbs
14. Horse Torso
16. Invalids
17. Journal
18. LeftyFish
19. MouthBreather
20. NoiSays
21. Oddism
22. PinioL
23. Potion
24. Rolo Tomassi
25. standards
26. STORM{O}
27. Sunflo'er

Thank you for supporting underground music.  -Christian

*late addition to editor error, we're sorry~

Saturday, September 15, 2018

Dead Empires - live at Mathcore Index Fest 2018

New York based progressive metalcore act Dead Empires' full set from Mathcore Index Fest 2018.

Wednesday, September 12, 2018

MouthBreather - live at Mathcore Index Fest 2018

Massachusetts hardcore / mathcore act MouthBreather's electrifying full set from Mathcore Index Fest 2018. 

Tuesday, September 11, 2018

Monday, September 10, 2018

Thursday, September 6, 2018

EXCLUSIVE PREMIERE: Doom Shrugs - "The Clairolfactant and the Flatulent Ghost"

Weird is the operative word to describe New Zealand's Doom Shrugs. This is weird and wonderful stuff. This is math rock with a fast and loose feel, so to speak, with off-kilter, nauseating rhythms and a number of improvised sections. Clean guitar tones and tight percussion drive this album, but there are sparse sections of shouted vocals as well. "The Clairolfactant and the Flatulent Ghost" is thought provoking in how it flaunts the normal conventions of music, recalling the math rock zaniness of bands like Hella and the jazz injected improvisational madness of John Zorn and his associated projects. This editor had an almost an identical experience to the first time I heard Horse Torso, especially given that this is obviously supposed to be music that makes you feel uncomfortable. It's very fidgety. Funnily enough, this album's vibe could be described by one of the song titles: "I Feel Overwhelming Joy, Please End My Miserable Life."

Doom Shrugs - "The Clairolfactant and the Flatulent Ghost," out 9/7/18.

Wednesday, September 5, 2018

Mathcast Episode 24: 9/5/18

This is the 24th episode of Mathcast, in which we discuss Sleepscultor, Accident Prone, Sunflo'er, Shame, Kanna, Campaign Committee, Fawn Limbs, Doom Shrugs, Geisterfahrer, Carnival Ghosts, Delta Sleep, and interview Pedram Valiani of Frontierer and Sectioned.

Sunday, September 2, 2018

Arms - live at Mathcore Index Fest 2018

Florida based mathcore act Arms, good friends of Mathcore Index's full set from from MIF2018.

Arms / Seizures split 7" available now from Dark Trail Records.

Saturday, September 1, 2018

SeeYouSpaceCowboy - live at Mathcore Index Fest 2018

California based metalcore act SeeYouSpaceCowboy's exciting full performance from Mathcore Index Fest 2018.

Tuesday, August 28, 2018

Mary Todd - live at Mathcore Fest 2018

Brooklyn based mathcore trio Mary Todd's full set from Mathcore Index Fest 2018.

Sunday, August 26, 2018

The Callous Daoboys - live at Mathcore Index Fest 2018

Atlanta based mathcore act The Callous Daoboys' full set from Mathcore Index Fest 2018.

Friday, August 17, 2018

Horse Torso - live at Mathcore Index Fest 2018

Brooklyn based instrumental math rock quartet Horse Torso’s debut performance at Mathcore Index Fest 2018.

Thursday, August 9, 2018

Yashira - live at Mathcore Index Fest 2018

Florida's Yashira's full set from Mathcore Index Fest 2018.

Sunday, August 5, 2018

Mathcast Episode 23: 7/29/18

This is the 23rd episode of Mathcast, in which we discuss Taken By the Tide, The Lord's Winning Team, Coarse, The Capgras Delusion, Needle Play, Things Amazing, Lower Automation, Koenji Hyakkei, Beast Jesus, and interview both MouthBreather and members of Detach the Islands following their performances at Mathcore Index Fest 2018 (featuring a small cameo from Edward B Gieda III of An Albatross fame).

Friday, August 3, 2018

Cryptodira - live at Mathcore Index Fest 2018

Long Island based progressive metal / mathcore band Cryptodira's full live set from Mathcore Index Fest 2018.

Tuesday, July 31, 2018

Inside the Beehive - live at Mathcore Index Fest 2018

The 2nd professionally shot set from Mathcore Index Fest 2018, New Jersey's legendary Inside the Beehive.

Tuesday, July 24, 2018

Juan Bond - live at Mathcore Index Fest 2018

The first of many professionally filmed sets from Mathcore Index Fed 2018, Brooklyn based mathcore band, Juan Bond - July 14th at Saint Vitus Bar, Brooklyn, NY.

Monday, July 23, 2018

Interview with Juan Bond / Detach the Islands

Mathcore Index correspondent Levi Sebastian interviews Brooklyn based bands mathcore / hardcore bands Juan Bond and Detach the Islands.

Interview with MouthBreather

Mathcore Index correspondent Levi Sebastian interviews Boston hardcore / mathcore outfit MouthBreather after their performance at Mathcore Index Fest 2018.

Thursday, July 5, 2018

Mathcast Episode 22: 6/28/18

This is the 22nd episode of our podcast, in which we discuss Journal, NoiSays, Potion, Goshen, Closet Witch, Clavel, Conformist, IKEA Mutilation Manual, Wizzrobe, Northwoods, Benoit, Lord Whorfin, Sloth & Turtle, and interview the slick tapping and skin slapping Los Angeles math rock duo, Standards.

Friday, June 29, 2018

EXCLUSIVE PREMIERE: The Sound That Ends Creation - "Roses and Thorns and Dead Unicorns"

Chris Dearing, the mastermind behind Texas mathcore / grind project, The Sound That Ends Creation, has come a long way. After releasing "Fitting Through the Crawlspace Between Rhyme and Reason" less than a year ago and appearing on Mathcore Index: Volume 4, TSTEC is back with his 3rd full-length, and it sees some of best work from the solo artist yet. With artwork done by Connie Sgarbossa of SeeYouSpaceCowboy, one can almost assume what kind of music one is going to encounter here, but the album also briefly broaches some electronic elements and includes a small saxophone feature. "Roses and Thorns and Dead Unicorns" is immediately reminiscent of the glory days of MySpace, and with it's cut-out art aesthetics, harsh vocals, art-grind freak outs, and abundant audio samples (Trailer Park Boys fans, rejoice), all that's missing is that white belt hanging in your closet.

"Roses and Thorns and Dead Unicorns" drops June 30th 2018 on Bandcamp.

Thursday, June 28, 2018

Interview with Standards

Mathcore Index correspondent Levi Sebastian* interviews Los Angeles instrumental math rock duo, Standards.

Originally aired on Mathcast Episode 22: 6/28/18.

*additional commentary by Christian Segerstrom

Read the full transcription after the jump.

Wednesday, June 27, 2018

Thursday, May 31, 2018

EXCLUSIVE PREMIERE: Snakehound - "Imitation Crown"

You may remember Kansas City's Snakehound from the video premiere we did earlier this month, and today we have the pleasure of bringing you an early stream of their new album, "Imitation Crown." Snakehound are a brand new band, but have already made waves in the online community with series of singles showcasing high-energy metalcore with earwig riffs and pull-offs aplenty. The album begins with the moshy "Dignified Rats," and as the band doesn't skip on the vicious hardcore riffs and breakdowns, it only gets better from there." "Gypsy Danger" playfully dials it back only momentarily before launching into "Guillotine del Toro," which aside from "Timberline" may very well be the best representation of the band's sound; Snakehound bring the energy of Converge with the technicality of Botch, and combine it with the groove and heaviness of their disciples in Every Time I Die, Norma Jean and The Chariot, and "Guillotine del Toro" is a delightful exhibition of these influences. "Snakes for Legs" is as off-kilter as the name suggests, and brings some sickly, chromatically descending diminished chords a la Daughters, but doesn't linger there for long, as it soon gives way to feedback and harmonics, which fades perfectly into “Timberline," the video of which being the aforementioned premiere. The record then has it's only moment of respite with the brief interlude, “28:06:42:12," before jumping back into the action with the albums first single "Autumn Driver," our first taste of what Snakehound had to offer. The next track, "Northern Viper," is seemingly ironically titled as it most features mostly southern rock riffs, but the band soon resumes a more serious assault with “Hornets for Hands" and "Bitter Tempest," which boast a few of the more technically impressive sequences on the album. The album's finisher, "Five Eyes," finally brings it to it's conclusion with a lurching, feedback riddled anthem.

Pre-order "Imitation Crown" now on Bandcamp.

Monday, May 21, 2018

EXCLUSIVE PREMIERE: goner. - “goner.”

In recent years the metal and hardcore scenes, including their respective aesthetics, have become hopelessly intermingled. Along with their similar social, political, and anti-religious themes, the sounds of blast beats and breakdowns, circle pits and 2 steps, growling and shouting, now all exist happily under one larger umbrella, despite some waging a tireless war of classification, e.g., "that's not metal," or my personal favorite, "that's not grindcore," an expression I often hear pertaining to Myspace era bands. Goner are one such example of this current amalgamation that spring to mind. Hailing from Syracuse, New York, also home of legendary Ed Gein, it's no surprise that the three piece is somewhat genre defying, and given the rise of bands like Nails, End, Helpless, and other HM2 driven metallic hardcore and grind, Goner have picked a perfect time to carve out their niche in an ever evolving scene. "My Experience Has Molded Me Into the Failure You See Before You" begins the EP with fast and vicious riffing, and with the exception of one HUGE whammy breakdown in "The Great Deceiver" (the mixing by Outlier SoundPedram Valiani of Frontierer and Sectioned should be extremely evident here), the self-titled EP scarcely relents until the conclusion of "Caretaker."

Preorder the debut EP from goner. here.

Friday, May 18, 2018

Wednesday, May 16, 2018

EXCLUSIVE PREMIERE: Sense Offender - "I"

There has a been a huge wave of technical and filthy hardcore bands emerging from the UK in the past few years: Frontierer, Sectioned, Helpless, Leeched, Dark Habits, Bed of Wasps, and Gendo Ikari to name a few, and Sense Offender are certainly no exception either. Given the band features a member of another similar, more established act, GeistSense Offender already have a correspondingly established hardcore pedigree and know exactly which buttons to push. However, where Geist and Sense Offender diverge is the more acute sense of hopelessness and despair of the latter. Sense Offender have trimmed the fat in favor of more dissonant passages that are alternatingly more driving and heavy, pulsating and mesmerizing, in a way that recalls the misanthropic stylings of Cult Leader or their former manifestation, Gaza. The EP's first track is a sample laced feedback loop that is the setup for the EP's true opener, "Prophet-Less," which launches an assault of odd-timed chording before a turn-on-a-dime change into it's big d-beat riff, quickly back into dissonance (where this release most happily dwells), and finally wrapping up with a hypnotic, slower riff, illustrating the band does know how to occasionally let off the gas and exercise dynamics."Starving Pigs," the EP's single, boasts an off-kilter, pulling middle section which draws with the force of a black hole. "Anointed with Seizures" begins with punishing riffs that are a trademark of this release, before giving way to a clean interlude, though band does not tarry here long, as the song quickly launches back into it usually attack before the eventual throbbing fadeout of "Weigh My Pieces." If this EP is any indication of the musical direction this band is headed, Sense Offender are a band to watch. 

Wednesday, May 9, 2018

Tuesday, May 1, 2018

Arms / Seizures split 7"

At long last, stream the new Arms / Seizures split now via Metal Injection, featuring a guest appearance from Chad Kapper of Frontierer.

"The Orlando Math maniacs of Arms are back this month. The Floridians made a splash with their 2016 effort, BLACKOUT, and look to bridge the gap between major releases with a new split with Seizures. Their two new tracks, "Junk Witch" and "Pentigroid Alcheum," showcase a remarkable progression in the band's sound since we last heard from them. The quartet has greatly expounded their sonic range. Take a look at "Junk Witch" which opens on a progressive, partially jazzy section before unfurling into Arms' typical frenzy.  "Junk Witch" capitalizes on the contained cacophony the band has made since their inception as well. Yet, in songs like "Pentigroid Alcheum," the quartet calls to some of their inspirational roots. The track features a guest spot from Frontierer vocalist, Chad Kapper. With his help and Arms' penchant for the unhinged, this song is certainly the more ferocious of the two. It taps into early Botch and Dillinger Escape Plan much more than anything prior it seems. Still, this track when juxtaposed with "Junk Witch" or much of BLACKOUT proves Arms' metallic artillery continues to grow. It bodes well for the young quartet's future.

With The Dillinger Escape Plan stepping aside, an entity like Arms certainly seems fit to fill that void."

Preorder the 7" now via Dark Trail Records below.

Saturday, April 28, 2018

Metal Injection Presents: Mathcore Index Fest 2018

Metal Injection Presents: Mathcore Index Fest 2018, July 14th matinee and all day July 15th at Saint Vitus Bar in New York City, featuring:

Car Bomb
An Albatross
Dead Empires
Inside The Beehive
The Callous Daoboys
Juan Bond
Detach the Islands
Mary Todd
Horse Torso
+ more TBA

 ...and the evening of July 15th at Trans-Pecos, featuring Artificial Brain, Pyrrhon, and Voidspawn (tickets sold seperately)

Sponsored by Metal Injection, Sheepsxclothing, Metal Trenches, Svbterranean, and Visceral Media

July 14th matinee: $25
July 14th evening (Trans-Pecos): $15
July 15th all day: $20
July 14th matinee and July 15th all day pass: $40

Event pages:

Tickets available now on Ticketfly:
2 day pass (Saturday matinee + Sunday all day):

Graphic design by Keith Carlson, Sheepsxclothing

Promo video by Visceral Media

Wednesday, April 4, 2018

Mathcast Episode 19: 3/31/18

This is the 19th episode of our podcast, in which we discuss Aberrant Phase, Euclid C-Finder, Zvleta, Sectioned, Satyr, Fero Lux, Setsuko, Lou Kelly, and revisit Good Game and Voiddweller, which is the only hip-hop project we are ever going to cover (see Psyopus, Frontierer samples).

Monday, March 5, 2018

Interview with xdadcorex podcast

Recently had the pleasure of doing an interview with the homies over at xdadcorex podcast about mathcore and some other unspeakably nerdy shit you should probably just hear for yourself.

Monday, February 19, 2018

EXCLUSIVE PREMIERE: Aberrant Phase - "End Is Near"

While recently perusing the mathcore tag on Bandcamp, I discovered a great band from my very own city of which I had not yet heard. Given the dearth of such music in the Bay Area, I was astonished to discover a band of like-minded musicians who weren't playing black metal or crust. Aberrant Phase are that band, and after quickly getting in touch with the members, today we have the pleasure of bringing you an exclusive stream of their new EP, "End is Near." The semi-eponymous first track is not unlike The Dillinger Escape Plan's ballad "One of Us Is the Killer," the tremulant vocals guiding the soft instrumentation into the final breakdown's crescendo. The EP then kicks into a higher gear with "Dementia" and "Ghost Farm," finally slowing to a lurch for the finale of "Storms," all of which are reminiscent of "Jane Doe" era Converge, and throughout this record (and moreover their whole discography) there is an air of the 90's and early 2000's that very much recalls other seminal bands such as Botch and Cave In, the proto-mathcore / "math rock before the twinkles" band, Dazzling Killmen, or even their contemporaries in Seizures or Fero Lux.

tl;dr: if you remember the word "noisecore," this will probably be your new jam.

Aberrant Phase are to release their new EP, "End is Near," February 27th.

Friday, February 16, 2018

Best of 2017

Mathcore Index's Best of 2017


After various delays, complications, and delinquent submissions, we decided to finally bring you our 2017 year end lists in article form, despite the fact it's absurdly late. Better late than never though, right?


10) Worry - "A Celebration of Suffering"

Ex-The Great Redneck Hope members illustrating just how much Colorado knows heavy.

9) Artificial Brain - "Infrared Horizons"

Brooklyn's best angular death metallars give the plethora of other Gorguts acolytes a run for their money.

8) Czar - "Life Is Way No Way to Treat an Animal"

Czar are keeping the lost art of jazzcore alive.

7) Puncture - "Form and Void"

Those of you complaining about Cult Leader's stylistic change after Gaza should immediately investigate this highly aggressive album.

6) Cleric - "Retrocausal"

An absolutely expansive masterpiece that took a long time to truly digest, given the sheer magnitude and ambition of the song writing.

5) Yowie - "Synchromysticism"

Speaking of expansion, Yowie's latest mind-expanding release is their magnum opus, and is as challenging as it is infectious.

4) Mico - "Segunda Muerte"

Columbia brings one of the most inspired yet conversely under-recognized hardcore albums this year, with a seamless darkened tinge that could be compared to Plebeian Grandstand.

3) Helpless - "Debt"

One of Holy Roar's best signings ever, Helpless appear on Mathcore Index: Volume 1, and show with this effort that they can deliver a masterful full-length performance that is filled with earwig riffs and Gaza-laced evil passages.

2) Converge - "The Dusk In Us"

Big surprise, right? Not even being lazy here, just genuinely jammed this a ton, according to both and Spotify.

1) The Heads Are Zeros - "The Heads Are Zeros"

The Heads Are Zeros' self-titled full-length is both their magnum opus and their swan song, and bands like this are the reason I started "writing" about music.


10) The Callous Daoboys - "Animal Tetris"
9) Ladybird - "I Feel Nothing / I Exist Nowhere"
8) Mouthbreather - "Pig"
7) End - "From Unforgiving Arms of God"
4) SOUNDING - "Trepanation"
3) Good Game - "Don't Blow It"
2) Snooze - "Actually, Extremely"
1) SeeYouSpaceCowboy - "Fashion Statements of the Socially Aware"


So Christian did EPs and full-lengths, but I'm just gonna do a mixed top 10.

10) Dying Fetus - "Wrong One to Fuck With"

Wanted this higher on my list, but it was nowhere near as good as other albums like "Reign Supreme."

9) End - "From the Unforgiving Arms of God"

Just angry and good.

8) Kublai Khan - "Nomad"

Solid heavy hardcore.

7) Converge - "The Dusk In Us"

Thought I would've jammed this more, but didn't quite as much as I expected.

6) Snooze - "Actually, Extremely"

Go-to feel good music

5) Good Game - "Don't Blow It"

A no-brainer.

4) King Krule - "The Ooz"

My genre switch up.

3) The Heads Are Zeros - "The Heads Are Zeros"

A ride off into the sunset.

2) Less Art - "Strangled Light"

Members of Curl Up and Die, 'nough said.

1) Primitive Man - "Caustic"

"It's doom, dude."

Wednesday, February 14, 2018

Interview with Metal Trenches

I recently "sat down" with Metal Trenches to talk mathcore, the Blogosphere, and more.

Read the full interview here.

Tuesday, February 6, 2018

Mathcast Episode 17: 1/28/18

This is the 17th episode of our podcast, in which we discuss Friendship, Tweak, Solitary Subversion, Ki the Tree, Telos, Almost Hell, KnowSuffer, Sense Offender, Professor Caffeine and the Insecurities, The Unnecessary Gunpoint Lecture, new Juan Bond, and struggle to enunciate the words "two thousand and eighteen."

Also available on iTunes.

Thursday, January 18, 2018

Mathcore Index Presents: Dead Kiwis, Pupil Slicer, and A Werewolf, and Subservience at Seabright Arms 2/19/18

Catch the homies in Dead Kiwis, Pupil Slicer, and A Werewolf with Subservience at Seabright Arms in London, sponsored by Mathcore Index! Event page here.

Monday, January 8, 2018

Friday, January 5, 2018

Interview with Michael Hollinger of Arms

Mathcore Index correspondent Carson Pace interviews Michael Hollinger, aka Weeb Min, guitarist of Arms and chief memelord at Odd-Metered Mathcore m e m e s.  

Originally aired on Mathcast Episode 16.

Arms / Seizures split 7” available here.

Read the full transcription after the jump.

Interview with The Number Twelve Looks Like You

Mathcore Index correspondent Carson Pace interviews The Number Twelve Looks Like You on the 12 year anniversary tour of "Nuclear, Sad Nuclear."

Originally aired on Mathcast Episode 16.

Read the full transcription after the jump.