MUSIC GEEKISM

1950-1959 (a reasonable attempt, anyway):

1. Cyril Jackson - Afro Drums
2. Charles Mingus - Mingus Ah Um
3. Miles Davis - Bag's Groove/Milestones
4. Bo Diddley - Go Bo Diddley!
5. Ken Nordine - Word Jazz
6.  Perez Prado - The Voodoo Suite
7. Art Farmer - The Aztec Suite
8. Thelonious Monk - Misterioso
9. Art Blakey - Orgy in Rhythm
10. v/a - Calypso Kings and Pink Gin

1960-1964:

1. Max Roach - We Insist: Freedom Now! Suite
2. Dean Elliott - Zounds! What Sounds!
3. John Coltrane - Africa/Brass
4. Freddie Hubbard - Breaking Point
5. Kenny Burrell - Midnight Blue
6. Stan Freberg - Presents the United States of America, vol. 1-2
7. Oliver Nelson - Afro-American Sketches
8. The Yardbirds - Five Live Yardbirds
9. Sun Ra - Interstellar Low Ways
10. Sonny Rollins - The Bridge

1965-1969:

1. The Jimi Hendrix Experience - Electric Ladyland
2. The Velvet Underground - s/t (third LP)
3. Pink Floyd - The Piper at the Gates of Dawn
4. Mothers of Invention - Absolutely Free
5. Velvet Underground - White Light/White Heat
6. The Beatles - s/t ("The White Album")
7. MC5 - Kick Out the Jams
8. Van Morrison - Astral Weeks
9. Captain Beefheart and his Magic Band - Trout Mask Replica
10. The Sonics - Here Are the Sonics

1970-1974:

1. The Stooges - Funhouse
2. Rolling Stones - Exile on Mainstreet
3. Miles Davis - Get Up With It
4. Sly and the Family Stone - There's a Riot Going On
5. Black Sabbath - Paranoid
6. Mungo Jerry - s/t
7. Charles Mingus - Let My Children Hear Music
8. Brian Eno - Here Come the Warm Jets
9. Mothers of Invention - Filmore East, June 1971
10. Alice Cooper - Killer

1975-1979 (this was the hardest one!)

0. KISS - Alive!/Alive! II
1. The Ramones - Rocket to Russia
2. The Residents - Third Reich n Roll
3. Chrome - Half Machine Lip Moves/Alien Soundtracks
4. Van Halen - s/t/Women and Children First
5. Funkadelic - Let's Take it to the Stage
6. The B-52's - s/t
7. The Buzzcocks - Singles Going Steady
8. Jonathan Richman - Back in Your Life
9. The Germs - (GI)
10. The Soft Boys - A Can of Bees

1980-1984 (I gave myself 15 slots for this, since it's roughly the years of my early adolescence):

1. Butthole Surfers - Psychic...Powerless...Another Man's Sack
2. Meat Puppets - II
3. Dead Kennedys - Fresh Fruit for Rottin' Vegetables/Plastic Surgery Disasters
4. The Cramps - Songs Our Lord Taught Us/Bad Music for Bad People
5. v/a - Rodney on the ROQ, Vol. II/Posh Hits
6. Angry Samoans - Back From Samoa
7. Bad Brains - Rock For Light
8. Black Flag - Damaged
9. R.E.M. - Chronic Town
10. Violent Femmes - s/t

11. Husker Du - Zen Arcade
12. Geza X - You Goddamn Kids!
13. The Go-Go's - Beauty and the Beat
14. Iron Maiden - Killers
15. Prince - Purple Rain

1985-1989:

1. Beastie Boys - Paul's Boutique
2. Fishbone - s/t
3. Pussy Galore - Dial "M" for Motherfucker
4. Sonic Youth - Bad Moon Rising
5. De La Soul - Three Feet High and Rising
6. Tom Waits - Rain Dogs
7. Public Enemy - It Takes a Nation of Millions to Hold us Back
8. They Might Be Giants - Lincoln
9. Fugazi - Margin Walker
10. The Pixies - Surfer Rosa

Alternate choice for those last two spots:

9. Jane's Addiction - Nothing's Shocking
10. Red Hot Chili Peppers - Uplift Mofo Party Plan

1990-1994:

1. Public Enemy - Fear of a Black Planet
2. Beastie Boys - Ill Communication
3. Digable Planets - Blowout Comb
4. A Tribe Called Quest - The Low End Theory
5. Wu-Tang Clan - Enter the Wu-Tang (36 Chambers)
6. R.E.M. - Automatic for the People
7. Guided By Voices - Propellor/Bee Thousand
8. Ice Cube - Predator
9. Jungle Brothers - Done by the Forces of Nature/Jay Beez Wit tha Remedeez
10. Redd Kross - Third Eye

1995-1999:

1. Beck - Odelay
2. Cornelius - Fantasma
3. Sleater-Kinney - Dig Me Out!
4. The Jon Spencer Blues Explosion - Orange
5. The Buena Vista Social Club - s/t
6. bis - Social Dancing
7. Bjork - Post
8. Mike Watt - Ball Hog or Tug Boat?
9. DJ Shadow - Endtroducing
10. Gza - Liquid Swords

2000-2004:

1. The Drive-By Truckers - The Dirty South
2. The Coup - Steal This Album
3. The People Under The Stairs - OST: Original Sound Tracks
4. Radiohead - Kid A
5. Deerhoof - Reveille
6. The Fiery Furnaces - Gallowsbird's Bark
7. Amon Tobin - Supermodified
8. The Flaming Lips - Yoshimi Battles the Pink Robots
9. Kanye West - The College Dropout
10. Mastodon - Leviathan

2005-2009:

1. J Dilla - Donuts
2. Gogol Bordello - Gypsy Punks
3. Madvillain - Madvillainy
4. Of Montreal - Hissing Fauna, Are You the Destroyer?
5. The Flaming Lips - Embryonic
6. The Fiery Furnaces - Widow City
7. Deerhoof - Offend Maggie
8. Beck - Guero
9. Acid Mothers Temple - SWR
10. The Drive-By Truckers - Brighter Than Creation's Dark

2010-2014:

1. Bobbie Oliver - Women Are Crazy
2. tUnEyArDs - w h o k i l l
3. Neneh Cherry and the Thing - The Cherry Thing
4. The Liars - Sisterworld
5. Maria Bamford - Ask Me About My New God
6. Kanye West - My Beautiful, Dark, Twisted Fantasy/
    Jay-Z and Kanye West - Watch the Throne
7. The Coup - Sorry To Bother You
8. Killer Mike - R.A.P. Music
9. Animal Collective - Centipede Hz
10. Jack White - Blunderbuss

2015-2019:

1. Kendrick Lamar - To Pimp a Butterfly
2. Run the Jewels - RTJ3
3. Kamasi Washington - Heaven and Earth
4. Titus Andronicus - The Most Lamentable Tragedy
5. Junkie XL - Mad Max: Fury Road OST
6. Alabama Shakes - Sound and Color
7. Sex Stains - s/t
8. Rhiannon Giddens - Freedom Highway
9. Deerhoof - Mountain Moves
10. A$AP Mob - Cozy Tapes: Vol. 1 Friends

Bonus Round:
Late 60's: Dr. John - Gris Gris
Early 70's: Can - Tago Mago (or maybe Gong - Angel's Egg)
Late 70's: The Congos - Heart of the Congos (I could think of dozens of albums to use, but since I don't have any reggae on my list...)
Early 80's: The Birthday Party - Junkyard (or maybe The Bangles - All Over the Place)
Late 80's: Dukes of the Stratosphear - 25 O'Clock
Early 90's: Hole - Live Through This
Late 90's: Spiritualized - Ladies and Gentlemen, We Are Floating in Space
Early 00's: The Polysics - Polysics or Die!
Late 00's: Sharon Jones and the Dap Kings - 100 Days, 100 Nights
Early 10's: The Julie Ruin - Run Fast
Late 10's: Shemekia Copeland - Outskirts of Love