Roundup of the best underground hip-hop of 2012 so far.

Bloodstained Introvators
Spaceship Earth - DJ Format (feat. Edan)
Salute - Fokis (feat. King T & Sadat X)
Coca Cola Freestyle - Heems
103 & Roosy - Action Bronson
No Downtime - KA
Tote Gunz - KRS-One
JSA - Jel
Nhomadz (Spit 16) - L.I.F.E. Long (feat. Breeze Evahflowin, Shabaam Sahdeeq & Swave Sevah)
Big Day for the Little People - Godforbid & Thirtyseven
I Strangled the Accordion - Third Sight
High Heals... - P. Kaye
The Birth of Slim Fussy - A.M. Breakups (feat. Teddy Faley & ADAM)
Green Velvet - A Tribe Called Death
Vast Vehicle - Zilla Rocca & Dr. Quandary
One Foot in Front of the Other - Routiger Slob
Spaceships - Bisco Smith & Peter Jay
Arrival - Bil Basmala
The Miracle - Homeboy Sandman
Grown Up - Danny Brown

New York State of Mind, Part 2 (Perquisite Remix feat. Benjamin Herman by GMJ) - Nas
Me, Not The Paper (DJ Premier Remix) - Jeru The Damaja
Jazz Is My Religion - DJ Rob Swift (feat. Bob James & Dave McMurray)
Huah Ha - DJ Revolution
Slick Money - Senor Kaos (feat. P.SO & Large Professor)
Musical Journey - Kero One
L'intruso - thegodfatherExperience & Alice
Solo Dancer (Stop! Look! And Rock The House, B-Boys!) - Charles Mingus
L'chemy - L*Roneous
Bamboo Flute Blues (Kid Koala Remix) - Kid Koala & Yusef Lateef
Ibid, Desmarches, Ibid - DJ Spooky
Endeavors for Never (The Last Time We Spoke You Said You Were Not Here. I Saw You Though.) - Shabazz Palaces
A.E.O.C. - Edan
Alternative 3 - PSY/OPSogist
Ice Cream Van - The RZA
Listen - DJ Osiris (feat. Mr. Dibbs)

Links to artists and musing/blathering at http://elmattic.podbean.com/2012/02/07/bebop-for-b-boys-take-2/

Lol - Danny Brown & Black Milk
Huzzah! (Extend-O-Mix) - Mr. Muthafuckin' eXquire (feat. Despot, Das Racist, Danny Brown & El-P)
Light Years - Has-Lo & J-Zone
Science - DJ JS-1 & Jeru Da Damaja
Black Lagoon - Black-Tokyo
Drones Over BKLYN - El-P
That's Your Brain (Swangin) - PSY/OPSogist
Hoard 90 - Gangrene (feat. Roc Marciano)
Walls of Insurrection - Dälek & Gym Brown
M.A.S.H. - The Black Opera
Bubonic Plague #3 - Tenshun
Beware - Death Grips
an echo from the hosts that profess infinitum - Shabazz Palaces
Amphetamine - Teddy Faley & A.M. Breakups

I wrote a long-ass article with this here: http://elmattic.podbean.com/2011/12/23/2011-the-year-hip-hop-got-weird/