Dead Letter No. 9 Psychosis
Halloween Party Pt. 1of 4 - Lauren Flax, Rose Kourts, Serrian
Dead Letter No. 963 Grand St, Brooklyn, NY 11249 · Map
Fri 23 Oct 2026 · 9pm → 4am Sat · 7 hours
21+ · Dead Letter No 9 ·
Press play
Who’s playing7 artists
In the order the promoter lists them.
Set times not published.
the pairs that have met
16 of the 21 pairings on this bill are first meetings.
- Lauren Flax and Rose Kourts — 2 shared bills before Friday, first on Thu 16 Nov 2023.
- Lauren Flax and Lady Harley — 1 shared bill before Friday, first on Fri 29 May 2026.
- Rose Kourts and Bea Trinidad — 1 shared bill before Friday, first on Sat 7 Mar 2026.
- CatLadyHi and Bea Trinidad — 1 shared bill before Friday, first on Fri 22 Nov 2024.
- Lauren Flax and Serrian — 1 shared bill before Friday, first on Sat 11 Nov 2023.
the fine print — 1 more line
- “Kitchen open late. Coat check available. 21+.”
Is… someone watching you? Are you seeing that face again? The nightmares are back, aren’t they. Make your appointment, the symptoms aren’t slowing down.
Night One of our four party series descends below what you thought you knew. Tonight, the impulses you keep locked away run wild - rampant and unapologetic.
Dress as the obsession gnawing on the flesh of your brain, your fears of what’s under the bed, or the animal inside of you.
In CARGO, Serrian initiates the unraveling from 9PM–11:30PM, followed by Rose Kourts from 11:30PM–1:30AM, welcoming that distorted pleasure many shy away from.
Then, Lauren Flax takes control from 1:30AM–3:30AM. Detroit-born and Brooklyn-forged, Flax has spent more than two decades moving through the darkest alleys of techno, electro, house, and jungle. Unrelenting, she drives CARGO past the point of reason until raw instinct is the only thing left.
The Foyer isn’t safe either; with Lady Harley ramping us up from 9:00PM-12:00AM. Once the clock strikes midnight, Catladyhi takes over until 3AM, with a carnal need to facilitate psychic release.
PSYCHOSIS is a reckoning. The twisted thoughts that live in the back of our minds come crawling out, the stages of grief are embodied in flesh, and together, we face our demons before they find us first.
All ticket sales are final
the rest of the promoter’s listing — 1 more paragraph
Kitchen open late. Coat check available. 21+.
from the promoter’s listing on Resident Advisor
Who they are
“Lauren Flax has been a lifelong musician, starting to play the drums at 8 years old before continuing on to guitar and bass in high school.”
their own biography
the whole biography
Lauren Flax has been a lifelong musician, starting to play the drums at 8 years old before continuing on to guitar and bass in high school. She began her DJ career in the underground dance and rave scenes of Detroit as a resident at the Motor Lounge, playing every Tuesday night along with resident DJs Mike Servito, DJ Dilemma, Jason Kendig, and Derek Plaslaiko. Flax played the very first Detroit Electronic Music Festival in 2000 on the Motor stage. While originally starting off as a jungle DJ, Flax evolved her style into a variety techno, house, and electro music. Flax moved to Chicago in 1999, where she honed in on music production while continuing to DJ. By 2002, she relocated again to Manhattan, which shortly followed the release of her first remix, "Much Finer" for Le Tigre. In 2018, Flax was introduced to DJ Haus by fellow Detroit musician and friend Jimmy Edgar, to which he quickly signed a record, resulting in "Dance Trax Vol. 16" (2018). In 2019, Flax joined the mostly Detroit-born New York collective The Bunker New York,[1] on which she released "One Man’s House is Another Woman’s Techno EP" (2019). The EP was highly successful and sold out quickly. Flax met with Brooklyn-based record label 2MR in 2019, curious to explore beyond the realm of dance music. She remixed 'Breathe' by label-mate Pale Blue, and that ended up inspiring Flax's new style of music. After the remix was released, Flax took to writing a 6 track EP, merging genres of ambient, acid house, and much more, set to come out in Summer 2021. Flax started touring the United States and Europe as a solo artist in 2019, performing live analog sets, pushing the boundaries of what a DJ is defined as.House on 39, Techno on 22, Acid House on 13 and Electro on 17. styles on their catalogued releasesReleased on WRKTRX (3), Aliens On Wax (1) and House Of Efunk Records (1); their RA profile also lists Defected Records, !K7, Toolroom Records, Nervous Records and 6 more. labels on their catalogued releases and on their RA profileRecently at BASEMENT, Green Room NYC, Qncc · often with Sevyn 0000, Austin Kunis, Costume Design, none of them here on Friday
“Originally from Charlotte and now based in Brooklyn, Rose Kourts has built a reputation for unpredictable, fearless sets that retain a deep sense of musicality and joy.”
their own biography
the whole biography
Originally from Charlotte and now based in Brooklyn, Rose Kourts has built a reputation for unpredictable, fearless sets that retain a deep sense of musicality and joy. Whether throwing down jagged techno, serving sensual house, rinsing jungle, or slipping into acid grooves and beyond, the New York mainstay brings a philosophy of fun, a risk-taking verve and a distinct, magnetic presence to every booth she steps into. Drawing upon a lifetime of musical exploration, scholarship, and an unwavering dedication to the dancefloor, Rose Kourts is an artist unafraid to go deep and wide. taking dancers through emotional peaks, ecstatic turns, and a healthy amount of surprise and delight. Rose Kourts is a regular at New York’s best-loved venues including BASEMENT, Nowadays, Paragon, Bossa Nova Civic Club, Public Records, and Knockdown Center; consistent tour dates across North America, western Europe, and the UK have won her a growing international following. Rose Kourts has played as direct support for artists like Mr. G and Moodymann, DJ Bone, DJ Stingray and Helena Hauff, Kevin Saunderson, Disclosure, The Egyptian Lover, RP Boo, Kenny Dope, and many more legendary and contemporary greats. Her festival bookings include WIRE Festival (2023 and 2025), Sustain-Release, Honcho Campout, Dweller Festival, Making Time, Fourth World, Keep Hush, Boiler Room (NYC and Boston), Shaker Mountain, and Slingshot Festival. She has also joined the lineups for storied collectives and events including Underground and Black, Body Language, Club Toilet, WRECKED, BOUND, Pep Rally, The Bunker, and Four Tet & Friends. Rose Kourts has also been tapped to join international tour dates for artists like Disclosure, Bicep, Interplanetary Criminal and Main Phase, Avalon Emerson’s 9000 Dreams, and X Club. Rose Kourts is a passionate curator and community leader with a longstanding commitment to creating spaces where music connects, empowers, and inspires. She is a co-founder and resident of the beloved renegade party Sweet Kicks along with Karlala and Miss Alicia. As a resident of The Lot Radio, she hosts GEMS, a monthly show with selections and affirmations inspired by the energies of different gemstones. Rose Kourts also currently serves on the Board of Directors for Beyond Booking, the nonprofit organization behind NY electronic institution The Bunker, and is an Ambassador for Rotterdam’s Kult Funktion cultural organization.Baltimore Club on 2, Bass Music on 2, Breaks on 2 and Jersey Club on 2. styles on their catalogued releasesRecently at Nowadays, Bossa Nova Civic Club, Mansions · often with Miss Alicia, Andi, shekdash, none of them here on Friday
“Serrian has been enmeshed in NYC nightlife since she was a teen - beginning as a promoter, finding her way to DJing and now also a talent buyer and curator.”
their own biography
the whole biography
Serrian has been enmeshed in NYC nightlife since she was a teen - beginning as a promoter, finding her way to DJing and now also a talent buyer and curator. She has opened up for the likes of Phil Weeks, Museum of Love (DFA), and Russell E.L. Butler. She has played at notable venues in NYC such as Good Room, Elsewhere, Bossa Nova Civic Club, TBA, H0L0 and more. Some of her favorite gigs have been queer parties outside of New York, such as here&there (ATL) and Ladies on Wax (Philly), dance to forget (San Juan), and Bless This Mess (Chicago). Serrian can be heard playing classic house, acid house, techno, electro, new wave and cosmic/nu disco. Her variety of styles can be attributed to her booking background as she has operated as a promoter for fifteen years: supporting labels, parties, and collectives that mold and innovate the fabric of NYC nightlife. Her style is eclectic, emotive, and upbeat - she crafts a story, bringing nuance and surprises to every set.Recently at H0L0, Xanadu, Danger Danger · often with Dio Garcia, Aria Pash, Ben Zo, none of them here on Friday
“Born and bred east coast DJ, Lady Harley is a conductor of sound that guides her dance floor through the night.”
their own biography
the whole biography
Born and bred east coast DJ, Lady Harley is a conductor of sound that guides her dance floor through the night. Unsatisfied with playing one particular genre, she explores all facets of dance music as she mixes. She views her sets as an exchange of energy between her and her congregants fed by the collective sound that hails from their soul. Guided by sensual baselines that ignite self-expression and creative identity, you can find yourself in an environment of vibrancy that is undeniably lustful. For Lady Harley, the opportunity to share her religion of music with others is her spiritual payday.Recently at Gabriela, Good Room, Le Bain · often with Laila Amira, Nosebleed, Tim Lucent, none of them here on Friday
“CatLadyHi, also known as Nora, got her name from her brother’s high school rap group called Killacamm & the D-Town Misfits, where they gave her the name CatLadyHi, which she’s kept as her Instagram handle since 2015.”
their own biography
the whole biography
CatLadyHi, also known as Nora, got her name from her brother’s high school rap group called Killacamm & the D-Town Misfits, where they gave her the name CatLadyHi, which she’s kept as her Instagram handle since 2015. Since moving to New York in August 2022, she discovered her passion for electronic music. As years have gone by, she’s defined her sound to a spectrum of groovy minimal tech house to deep tech. She finds herself playing house music at raves and clubs in New York and Texas. Some of the places she’s played are Elsewhere, LPR (Le Poisson Rouge), Somewhere Nowhere, Superior Ingredients and Sunset Park Rooftop. She’s opened for big artists such as Jamie Jones, Beltran, Rossi, Matroda, Ship Wrek, Offaiah, and Detlef.Recently at MAD Radio NYC, Brooklyn Storehouse, Dead Letter No. 9 · often with Bahng, Ramon, Miss Hazard, none of them here on Friday
“Bea Trinidad is a New York City–born and based Filipina DJ, vinyl selector, and producer whose sound is a vibrant map of her global travels and multicultural roots.”
their own biography
the whole biography
Bea Trinidad is a New York City–born and based Filipina DJ, vinyl selector, and producer whose sound is a vibrant map of her global travels and multicultural roots. Her sets are heavily based on New York City’s musical identity, anchored in the warmth of soulful and deep house, with influences of hip-hop and r&b, jazz, soul, peak-time euphoria of ’90s anthems, and a wide-reaching palette of global club rhythms - the very sounds that defined the city’s legendary dance floors. A technical powerhouse behind the decks, Bea is known for her multi-deck mixing and hybrid digital-vinyl sets. By bridging the gap between these classic NYC sensibilities and modern dance floor rhythms, she creates a sound that is both locally rooted and internationally minded. A classically trained pianist and dancer of over 20 years, Bea’s relationship with music is inherently physical. Her perspective has been sharpened by a decade-long immersion in rave culture, giving her an innate understanding of the dance floor’s energy and the "why" behind the groove. While living in Europe for three years, Bea’s background as a promoter for the Paris-based collective Possession offered a firsthand look at the logistics and raw energy required to build a movement from the underground up. This experience, combined with her ability to speak several languages, allows her to navigate the industry as a true sonic citizen. Bea is celebrated for her versatility. Much like her work as a cultural commentator, her sets explore the globalization of sound, proving that a fusion of cultures can create a universal language on the floor. Bea has brought her sound to some of New York City’s favorite spaces, including Public Records, Elsewhere, and House of Yes. Her international reach extends to Asia and Europe, while her versatility has led to partnerships with global brands like Adidas, Free People, the US Open, and Dazed Magazine. Beyond the booth, she remains a dedicated advocate for her community, consistently lending her abilities to fundraisers, POC-led organizations, and initiatives championing women in music. Ultimately, her mission is to ensure the dance floor remains an accessible site for connection, advocacy, and joy.Recently at Under the K Bridge, Elsewhere, Roberta's · often with Roland & Brother Rich, Bustin' Loose, SMURFOUDIRTY, none of them here on Friday
Recently at Dead Letter No. 9, House of Yes, Jupiter Disco · often with elle xxo, DOLLNXTDOOR, Connector, none of them here on Friday
names these artists often play with — not on Friday
- Corazón De Melon3 with Serrian and 2 with Bea Trinidad
- Dio Garcia12 with Serrian
- Miss Alicia8 with Rose Kourts
- Laila Amira6 with Lady Harley
- Sevyn 00006 with Lauren Flax
- Aria Pash5 with Serrian
- Ben Zo5 with Serrian
- Honey Bun5 with Rose Kourts
how this compares
- Median final count, Fridays at Dead Letter No. 975
- Middle half finished between47 and 122
- Past Fridays at this venue counted107
- Counted so far25 on Thu 8 Oct, 47 on Mon 19 Oct
Counts keep rising until the night; this is where it stands today.
The room
Dead Letter No. 9 — 366 events and 816 distinct artists since Oct 2023.
Holds about 150.
Also that night
- Refuge Friday: DJ Seinfeld, Baltra, Physical Therapy & KiyoshiRefuge — Physical Therapy and Lauren Flax keep turning up on the same bills.
- FIST: Lacchesi / Nene H / Word of Command / DJ Clone / Jubilee / Mez Monty / Connor WrongBASEMENT — Jubilee and Lauren Flax keep turning up on the same bills.
- Paradiso: Ultra Naté, Kilopatrah Jones, Karim Olen Ash + Saia, RATONC1T0Paragon — Kilopatrah Jones and Rose Kourts keep turning up on the same bills.
how these 3 are connected
- Refuge Friday: DJ Seinfeld, Baltra, Physical Therapy & Kiyoshi — Physical Therapy and Lauren Flax have shared 5 bills; Physical Therapy is on that bill and Lauren Flax is on this one.
- FIST: Lacchesi / Nene H / Word of Command / DJ Clone / Jubilee / Mez Monty / Connor Wrong — Jubilee and Lauren Flax have shared 4 bills; Jubilee is on that bill and Lauren Flax is on this one.
- Paradiso: Ultra Naté, Kilopatrah Jones, Karim Olen Ash + Saia, RATONC1T0 — Kilopatrah Jones and Rose Kourts have shared 4 bills; Kilopatrah Jones is on that bill and Rose Kourts is on this one.