SCHEMAPOSSE, also known as Schemaboyss or The Schema Coalition, was a collective of underground rappers and producers.
SCHEMAPOSSE was founded iat the end of 2014 by JGRXXN, a few years after the big break up of RVIDXR KLVN/Raider Klan in which JGRXXN was a member.
Starting in 2015, SCHEMAPOSSE and its huge line-up of over 40+ unknown to well-known artists from the underground rap scene started dropping mixtapes frequently. They grew a whole lot and expanded their own and each others fan bases with the help from the group.

On the 12th of January 2017, shortly after the remaining members put out a new tape JGRXXN refused to be a part of, he decided it was time to end the group. He put this tweet on his official Twitter saying:

Today I will retire SCHEMA… It was a good run it made people’s Dreams come true just like I said it would but now its on to other things

Members

There has been over 40 artists coming and going over the 2 years the group was active. Here’s a list of confirmed members (clicking on their name will either take you to their Genius or SoundCloud page):
- JGRXXN
- GHOSTEMANE (2015-16)
- Craig Xen (2015-16)
- Lil Peep (2015-16)
- Locodunit (2015-16)
- Lil Infamous (2015-16)
- Trigg Bambino (2015-16)
- Rebelyus (2015-16)
- Mr. Sisco (2015-22)
- DJ Killa C (2015-17)
- Diggy 1-D (2015-2022)
- Kold-Blooded (2014-2022)
- NEM (2015-2022)
- LiL WooFy WooF (2015-2022)
- YungWardenBuffett (2015-2017)
- G Lo Key (2015-2020)
- NV Schema (2015-22)
- SMOKEDOUTOG (2015-2017)
- DJJT (2015-2022)
- Shayd 479 (2014-2020) (also on Blac Teflon prior to 2014)
- Stunt Melo (2014-2022) (also on Blac Teflon prior to 2014)
- Smokey Mane (2015-2017)
- Buddah Jones (2015-2022)
- S.A.M. (2015-2022)
- Lord Mack (2016-2017)
- Skreetware (aka Mistified) (2015-2016)
- Dank $inatra (2016-2022)
- 90’s bambino (2015-2016)
- Yung Death (2016-2017)
- GeeKey (2015-2017)
- ZillabeatZ (2015-2016)
- Ayoza (2015-2022)
- God Roza (2015)
- Gwualaman (Never Appeared, only listed)
- Jayne Doe (2015) (Graphic Artist)
- Moba Dark (2015)
- Trap Sade (2015)
- Twenty (2015)
- Twin [aka Iceberg Black] (2015-2023)
- Weez (2015-2018)
- ITSOKTOCRY (2016)
- ZootLeggz (2015)
- SXMPRA (2020-2022)
- Xoie (2020-2022)
- [DJVSIREN] (2020-2023)
- [LIL XAV] (2020-2023)
- [AKATAMI] (2020-2023)
- [TREKS] (2020-2023)
- [DJ INSANE] (2014-2023) (also on Blac Teflon prior to 2014)
- [TEDDY SLUGZ] (2020-2022)
- [YUNGXODU$] (2020-2021)
- [CLOUDYMANE] (2020-2022)
- [JAKE OHM] (2021-2022)
- [NATSU FUJI] (2018-2022)
- [CHASE] (2022)
- [TRIPPYLOVE] (2020)
- [COMA.] (2020-2023)
- [KOTA.] (2020-2022)
- [GIZMO] (2016)
- [ASTRAL TRAP] (aka Dari Loso) (2016)
- [GVLLOW] (2015-2016) (Affiliate)
- [BRENNAN SAVAGE] (2016) (Affiliate)
- [DJ ANDYSON] (2015-2020)
- [HOODED LOCUST] (2015)
- [WAVY JONES] (2016)

Since the group was so massive, not every artist could be seen when SCHEMAPOSSE was named in media etc. GHOSTEMANE joined when the collective formed in early 2015 but when Lil Peep joined 8 months or so after , JGRXXN had the trio that would be the face outwards for the group known as SCHEMAPOSSE.
Lil Peep and GHOSTEMANE being a part of the collective gave them a lot of exposure and followers, both having less then 1500 Followers at the time of joining.

JGRXXN, Peep and Ghoste did an interview for No Jumper where JGRXXN do most of the talking and Peep and Ghoste isn’t saying very much.

GHOSTEMANE announced on the 15th of April 2016 on Twitter:

Attention
I am no longer a part of SCHEMAPOSSE
Look to the future

KREEP

GHOSTE tweeted this a couple of days before the interview they had done with No Jumper was uploaded to YouTube. This caused some confusion when people saw the interview, cause they had basically already split up.
There’s almost no information available on why GHOSTE left SCHEMAPOSSE. But in an interview NEM did for SHDCVLT he’s asked:
So i dont want to get too off topic but can you enlighten us a bit on Ghostemane leaving Schemaposse and the issues that have come up?

And NEM answers:

Well they filmed the NoJumper interview and had a few shows coming up…he left a couple days before the interview dropped with no explanation to the crew, with shows still lined up headlining next to JGrxxn…he wasn’t even supposed to be on this interview or at these shows, they were hand outs from JGrxxn…so he left and threw shots at us here an there on songs/shows, subliminally and direct…

GHOSTEMANE always showed great loyalty and always seemed to be very thankful and generous when talked about SCHEMA. Like in this interview he did for TRIPSIXX where he is asked “What is schema posse to you?” and he answers “It’s everything for me.”.
So, whatever happened between him and SCHEMA it must’ve been something extra.

After all this went down with GHOSTEMANE and Lil Peep, they both announced they left SCHEMAPOSSE on Twitter along with their affiliates like WAVY JONE$ and ItsOkToCry.
Skip forward a couple of months and Lil Peep could be seen hanging around with HORSEHEAD, WICCA PHASE SPRINGS ETERNAL and other members of Cold Hart’s group/label/movement: GOTHBOICLIQUE, a.k.a. GBC.
On 16th of September 2016 the official “GBC-twitter” made what everyone was thinking official:

lil peep is officially gbc

Some of the names in SCHEMA might not be as recognizable as JGRXXN, Lil Peep or GHOSTEMANE. But SCHEMA did have a couple of members that are at least worth mentioning.
Starting with Locodunit and Lil Infamous, who together form the duo “Seed of 6ix” (SO6ix). Locodunit and Lil Infamous are the nephews of DJ Paul of Three 6 Mafia, hence the name Seed of 6ix. Lil Infamous is also the son of Ricky Dunigan (Lord Infamous), who was also a member of Three 6 Mafia.

NEM, LiL WooFy WooF and DJ Killa C has probably put out more music than any other rapper in the group during the active period (not counting JGRXXN). LiL WooFy WooF is easily recognizable from his “west-coast-late-90’s-Eazy-E-type” sounding voice.

DJ Killa C to the left and LiL WooFy WooF to the right.

Last artist on this lil' “honorable mentions” list is the producer and rapper Mr. Sisco – also known as ThePhonkShop on SoundCloud. Sisco is well-known in the underground rap scene and have over 11k followers on SoundCloud. He was releasing bangers before he was with SCHEMA and there is no doubt that he will continue doing the same!