Question: What Chicago collective had a member release a free mixtape?

Context paragraphs:
Free (Based Freestyles Mixtape): Free (Based Freestyles Mixtape) is a collaborative mixtape by American rappers Lil B and Chance the Rapper.  It was released for free on August 5, 2015.

It All Comes Down to This (mixtape): It All Comes Down To This is the name of the first mixtape by Wu-Tang Clan affiliated, Remedy, released on December 7, 2010, on APRC Records.  Originally released as a full-length studio album, it was later released as a free mixtape download.  Guests include RA the Ruggedman, Trife Diesel, Killah Priest and Hell Razah among other Wu-Tang Clan affiliates.

MMM (Money Making Mitch): MMM (Money Making Mitch) is a mixtape by Puff Daddy, originally released on November 4, 2015 as a free mixtape on Bad Boy Records.  It was later re-released on iTunes as a retail album on December 18, 2015.  It serves as the lead-up to Diddy's sixth studio album "No Way Out 2", the sequel to Daddy's debut album "No Way Out" (1997).  It features guest appearances from hip hop artists Big Sean, French Montana, Future, Jadakiss, Lil' Kim, Pusha T, Styles P, Travis Scott, Ty Dolla Sign, Wiz Khalifa and more.  It also features production from Puff Daddy himself, 88-Keys, Ayo, D'Mile, Don P, Harry Fraud, Hollywood Hot Sauce, Honorable C.N.O.T.E., Keyz, Kuk Harrell, Mario Winans, Mike WiLL Made-It, Nashiem Myrick, P-Nasty, Puff Daddy, Rob Holladay, Sean C & LV, Smash David and Stevie J.

Illmind: Ramon Ibanga, Jr., professionally known as Illmind (often stylized as ! llmind) is a Filipino American hip hop producer and educator from Bloomfield, New Jersey.  He has co-written and produced hip-hop, pop, soul, and electronic music for labels such as Cash Money, Def Jam, and Aftermath, and has worked with artists such as Andy Mineo, Kanye West, Drake, J. Cole, Dr. Dre, Ludacris, 50 Cent, Ariana Grande, and others.  His accomplishments in 2016 include production on the new Hamilton Mixtape and Disney's Moana (2016 film), both created by Lin-Manuel Miranda.  ! llmind has released several studio albums and had a number of songs and albums reach the music charts.  His most recent album, "Human", is a collaboration with Joell Ortiz, and was released on July 17, 2015.  Starting in 2008 ! llmind has released the free mixtape series "Blaps, Rhymes & Life," and he operates a producer showcase in New York city called Beats, Love, Alcohol & Party (B.L.A.P.).  Since 2011 he has released instrumental albums and "producer drum kit" albums for music producers dubbed his "Blap-Kit" sound packs.  He established his own multi-genre music company Roseville Music Group in 2014.

Millionaires discography: The discography of the Millionaires consists of one studio album, three extended plays, one mixtape and five singles.  The group released their debut EP, "Bling Bling Bling! ", in July 2008, followed by their second EP "Just Got Paid, Let's Get Laid" in June 2009.  Their third extended play, "Cash Only", was preceded by the single "Stay the Night", released with B-Unique Records, which charted at #12 on the UK Top World Dance Charts.  After the departure of member Dani Gore, the now-duo released a free mixtape, "Your Girl Does Party" in May 2012, followed by their debut studio album "Tonight" in March 2013.  Various songs remain unreleased with no confirmed release date, such as "Hush Little Boyfriend", "That's How We Party", "Rich Girls", "Not Everyone's A Millionaire", "Hairspray", "Candy Paint", "Beatbox", a song featured on Ashley Purdy's Instagram.  As well as two unreleased features one on a song rumored to be "Fuck Me I'm Famous" dubbed "Team Fierce" alongside Jeffree Star and Blood on the Dance Floor and Young Scrap's song "Phantom".

Can't Take That Away from Me: Can't Take that Away from Me is the first mixtape by American pop-R&B singer JoJo.  The free mixtape was released exclusively to Rap-Up. com on September 7, 2010, as a prelude to her third studio album, Mad Love.  (Released October 14th, 2016).  The mixtape received a positive reaction from both JoJo's fans and critics alike.  This is JoJo's first independent release without a major label.

Zeitgeist: The Spirit of the Age: Zeitgeist: The Spirit Of The Age is the fourth album by underground hip hop group The Lost Children of Babylon released November 30, 2010 on Soul Kid Records.  The album's theme is focused on the New World order and Illuminati.  It was also released October 19 on iTunes.  The package comes with a , a download card for the instrumentals and a free mixtape.

Us Placers: "Us Placers" is the debut song by American supergroup Child Rebel Soldier, a musical collaboration consisting of hip-hop artists Lupe Fiasco, Kanye West, and Pharrell Williams.  It was released as the third song on the track-listing of West's 2007 mixtape "Can't Tell Me Nothing".  The song was produced by Fiasco and contains samples of the recording "The Eraser" by Thom Yorke, lead singer of the alternative rock band Radiohead.  On "Us Placers," the trio speak on the entrapments of fame.  Having been released on a free mixtape, the song did not enter charts but became an online hit and received strong reviews from music critics.

Thelonious Martin: Malcolm Martin (born 1992), professionally known as Thelonious Martin or King Thelonious is an American Hip Hop record producer from Chicago, Illinois.  He is also a member of the Chicago collective Savemoney.

Chance the Rapper: Chancellor Johnathan Bennett (born April 16, 1993), known professionally as Chance the Rapper, is an American rapper, singer, songwriter, record producer, and actor from the West Chatham neighborhood of Chicago, Illinois.  In 2013, he began to gain recognition following the release of his second mixtape, "Acid Rap".  Apart from his solo career, he is a member of the Chicago collective Save Money (along with frequent collaborator Vic Mensa).  He has worked as the lead vocalist for the band The Social Experiment; they released the album "Surf" in May 2015.

Supporting paragraphs: Free (Based Freestyles Mixtape) Chance the Rapper
Answer: Save Money