1975

[humprof]

I started threads like this for 1972, 1973 and (very belatedly!) 1974. I'll kick this one off with my own highly selective list of albums that turn 50 in 2025. I'm sure there are plenty of titles I've overlooked, so...Discuss. I'll make additions and corrections for as long as I can edit this post. (Fair warning: I've salted my starter pack with a whole bunch of notable jazz releases from 1975, if only to counterbalance all the hard rock/classic rock titles, which--don't hate me--I mostly don't dig.) [Edit after 12 hours or so: I've padded the original 100 or so with 20 or 30 more.]

Oh--also: 1975 was sort of the beginning of the end for quad, right? Maybe one of you statisticians out there can

1. Cull my list for albums that had a quad release;
2. Calculate the percentage of (1) that were eventually re-released in a modern, higher-res format; and
3. Do a shortlist of (1) and/or (2) (and/or 0, for that matter) that have (also?) had a 5.1 and/or Atmos "upgrade," in either physical or streaming form.

• 10cc: The Original Soundtrack
• Abba: Abba
• Abercrombie, John, Dave Holland, and Jack DeJohnette: Gateway
• AC/DC: High Voltage
• Aerosmith: Toys In the Attic
• Alice Cooper: Welcome to My Nightmare
• Allman Brothers Band: Win, Lose, or Draw
• Ambrosia: Ambrosia
• America: Hearts
• Average White Band: Cut the Cake
• Bad Company: Straight Shooter
• Beck, Jeff: Blow By Blow
• Bennett, Tony and Bill Evans: The Tony Bennett/Bill Evans Album
• Black Sabbath: Sabotage
• Blood, Sweat & Tears: New City
• Bowie, David: Young Americans
• Boys of the Lough, The: The Boys of the Lough
• Brecker Brothers, The: The Brecker Brothers
• Brown, Marion: Vista
• Burning Spear: Marcus Garvey
• Burton, Gary: Dreams So Real - Music of Carla Bley
• Byrd, Donald: Places and Spaces; Stepping Into Tomorrow
• Camel: The Snow Goose
• Campbell, Glen: Rhinestone Cowboy
• Captain & Tenille: Love Will Keep Us Together
• Chicago: VIII
• Collins, Judy: Judith
• Commodores - Caught in the Act; Movin' On
• Davis, Miles: Agharta and Pangaea
• Doobie Brothers: Stampede
• Dylan, Bob: Blood on the Tracks
• Eagles: One of These Nights
• Earth, Wind & Fire: That’s the Way of the World; Gratitude
• Electric Light Orchestra: Face the Music
• Ellington, Duke: The Afro-Eurasian Eclipse
• Eno, Brian: Another Green World
• Flack, Roberta: Feel Like Makin’ Love
• Fleetwood Mac: Fleetwood Mac
• Focus: Mother Focus
• Foghat: Fool for the City
• Garfunkel, Art: Breakaway
• Gates, David: Never Let Her Go
• Gentle Giant: Free Hand
• Graham Central Station: Ain't No Bout-a-Doubt It
• Grateful Dead: Blues for Allah
• Hall, Jim: Concierto
• Hall & Oates: Darryl Hall and John Oates
• Hancock, Herbie: Man-Child; Flood
• Harper, Billy: Black Saint
• Harris, Emmylou: Pieces of the Sky
• Heart: Dreamboat Annie
• Hemphill, Julius: ‘Coon Bid’ness
• Henderson, Joe: Canyon Lady
• Hues Corporation, The: Love Corporation
• Ian, Janis: Between the Lines
• Isley Brothers: The Heat Is One
• James, Bob: Two
• Jarrett, Keith: The Koln Concert; Death and the Flower; Backhand
• Jefferson Starship: Red Octopus
• Jethro Tull: Minstrel in the Gallery
• John, Elton: Captain Fantastic and the Brown Dirt Cowboy
• Jones, Quincy: Mellow Madness
• Journey: Journey
• KC and the Sunshine Band: KC and the Sunshine Band
• Kirk, Rahsaan Roland: The Case of the 3-Sided Dream in Audio Color
• Kiss: Alive!
• Kuti, Fela: Roforofo Fight
• Labelle: Phoenix
• Led Zeppelin: Physical Graffiti
• Mahavishnu Orchestra: Visions of the Emerald Beyond
• Melvin, Harold and the Blue Notes: Wake Up Everybody; To Be True
• MFSB: Philadelphia Freedom
• Mingus, Charles: Changes One and Two
• Mitchell, Joni: The Hissing of Summer Lawns
• Modern Jazz Quartet: The Last Concert
• Monty Python: Matching Tie and Handkerchief
• Mouzon, Alphonse: Mind Transplant
• Nazareth: Hair of the Dog
• Nektar: Down to Earth
• Nelson, Willie: Red Headed Stranger
• Nilsson, Harry: Duit on Mon Dei
• Nugent, Ted: Ted Nugent
• O'Jays, The: Survival; Family Reunion
• Ohio Players: Honey
• Oldfield, Mike: Ommadawn
• Parliament: Mothership Connection
• Pavlov's Dog, Pampered Menial
• Pink Floyd: Wish You Were Here
• Ponty, Jean-Luc: Upon the Wings of Music
• Pure Prairie League: Two Lane Highway
• Queen: A Night at the Opera
• Rava, Enrico: The Pilgrim and the Stars
• Redbone, Leon: On the Track
• Reed, Lou: Metal Machine Music
• Riperton, Minnie: Adventures in Paradise
• Robinson, Smokey: A Quiet Storm
• Roxy Music: Siren
• Rufus: Rufus featuring Chaka Khan
• Rush: Fly By Night
• Seals & Crofts: I'll Play For You
• Seger, Bob: Beautiful Loser
• Shorter, Wayne: Native Dancer
• Simon, Carly: Playing Possum
• Simon, Paul: Still Crazy After All These Years
• Smith, Patti: Horses
• Spinners, The: Pick of the Litter
• Springsteen, Bruce: Born to Run
• Squire, Chris: Fish Out of Water
• Steely Dan: Katy Lied
• Stewart, Rod: Atlantic Crossing
• Stills, Steven: Stills
• Stone, Sly: High on You
• Stylistics, The: Thank You Baby; You Are Beautiful
• Summer, Donna: Love to Love You Baby
• Supertramp: Crisis? What Crisis?
• Synergy: Electronic Realizations For Rock Orchestra
• Taylor, James: Gorilla
• Three Dog Night: Coming Down Your Way
• Towner, Ralph: Solstice
• Tubes, The: The Tubes
• Turner, Tina: Acid Queen
• Van der Graaf Generator: Godbluff
• van Leer, Thijs: Introspection
• Wakeman, Rick: The Myths and Legends of King Arthur and the Knights of the Round Table
• War: Why Can’t We Be Friends
• Warwicke, Dionne: Then Came You
• Washington, Jr., Grover: Mister Magic; Feels So Good
• Weather Report: Tale Spinnin’
• Weber, Eberhard: Yellow Fields
• Wheeler, Kenny: Gnu High
• Who, The: The Who By Numbers
• Wings: Venus and Mars
• Winter, Edgar: Jasmine Nightdreams; Edgar Winter Group with Rick Derringer
• Winter, Johnny: John Dawson Winter III
• Young, Neil: Tonight’s the Night; Zuma
• Zappa, Frank: One Size Fits All; Bongo Fury
• ZZ Top: Fandango

 

[privateuniverse]

John Lennon's Imagine was released in 1971, not 1975. The confusion may stem from the album's title track not being released as a single in England until 1975.

I would nominate Mike Oldfield's Ommadawn to take its place.

 

[ar surround]

Great list! Took me some time to find that this one wasn't on it:

Tomita: Pictures at an Exhibition

 

[Bill B]

Great list @humprof !!

Makes me wish I could go back in time and experience them for the first time again.

 

[privateuniverse]

Some other favorites of mine that didn't make the list:

Supertramp - Crisis? What Crisis?
The Tubes - The Tubes
Frank Zappa - One Size Fits All
Frank Zappa - Bongo Fury

....and then there's Tina Turner's Acid Queen. Check out her version of "Whole Lotta Love". It'll change your life.

 

[humprof]

John Lennon's Imagine was released in 1971, not 1975. The confusion may stem from the album's title track not being released as a single in England until 1975.

I would nominate Mike Oldfield's Ommadawn to take it's place.

Great list! Took me some time to find that this one wasn't on it:

Tomita: Pictures at an Exhibition

Corrected/added--thanks!

 

[humprof]

Some other favorites of mine that didn't make the list:

Supertramp - Crisis? What Crisis?
The Tubes - The Tubes
Frank Zappa - One Size Fits All
Frank Zappa - Bongo Fury

....and then there's Tina Turner's Acid Queen. Check out her version of "Whole Lotta Love". It'll change your life.

Thanks! Added. (With a big Amen! to Tina, who has definitely sent us all back for some schoolin'.)

 

[shakti]

Van der Graaf Generator - Godbluff

It’s on my top 10 of 1975.

 

[humprof]

Van der Graaf Generator - Godbluff

It’s on my top 10 of 1975.

Added; thanks. (You also indirectly reminded me to add Gentle Giant's Free Hand. I admire VDGG's instrumental prowess, but Peter Hammill is one of those singers whose vocal stylings I just can't abide, no matter how much I try. That's totally on me, though--god knows there are plenty of other love-em-or-hate-em voices I've got absolutely no problem with.)

 

[Blackwood]

My high points of ’75:

• Alphonse Mouzon - Mind Transplant
• Camel - The Snow Goose
• Chris Squire - Fish out of Water
• Deep Purple - Come Taste the Band
• Focus - Mother Focus
• Rainbow - Ritchie Blackmore’s Rainbow
• Tommy Bolin - Teaser

 

[Lensflair]

One of my favorite releases in 1975 that wasn’t mentioned yet is Synergy - “Electronic Realizations For Rock Orchestra”. REALLY hoping for a 50th anniversary blu-ray of the quad mix.

 

[SHB]

Should be on the list- Pavlov's Dog Pampered Menial- a masterpiece of an album from 75. Seriously, I dig David Surkamp's vocals. Of Once And Future Kings in Dolby Atmos would be magnificent

 

[sjcorne]

Two that have already had their quad mixes re-released on SACD:

• Isley Brothers - The Heat Is On
• Harold Melvin & The Blue Notes - Wake Up Everybody

 

[humprof]

Two that have already had their quad mixes re-released on SACD:

• Isley Brothers - The Heat Is On
• Harold Melvin & The Blue Notes - Wake Up Everybody

I always forget that those albums are so late!

 

[humprof]

Should be on the list- Pavlov's Dog Pampered Menial- a masterpiece of an album from 75. Seriously, I dig David Surkamp's vocals. Of Once And Future Kings in Dolby Atmos would be magnificent

A deep cut!

 

[steelydave]

This is everything I could find for 1975, between my own collection and spreadsheets I keep - it's extensive but not exhaustive, I didn't include most country or easy listening releases.

I think I used the same legend as you, but just in case [1] = quad mix, [2] = quad mix with a digital multichannel reissue (or streaming) and [3] = modern 5.1 or Atmos remix.

Aerosmith - Toys in the Attic [1], [3] (5.1 SACD)
America - Hearts [2] (SACD)
Joan Baez - Diamonds & Rust [1]
Bachman-Turner Overdrive - Four Wheel Drive [1]
Jeff Beck - Blow by Blow [2] (SACD)
Blood, Sweat & Tears - New City [2] (SACD)
David Bowie - Young Americans [3] (5.1 DVD-V)
Camel - The Snow Goose [3] (5.1 Blu-Ray)
The Captain & Tennille - Love will Keep Us Together [1]
Carpenters - Horizon [1]
Chicago - VIII [2] (Quadio Blu-Ray)
Climax Blues Band - Stamp Album [1] (unreleased)
Judy Collins - Judith [1]
Alice Cooper - Welcome to My Nightmare [3] (5.1 DVD-A)
Eric Clapton - There's One in Every Crowd [2] (Blu-Ray)
Mac Davis - Burnin' Thing [2] (SACD)
Deep Purple - Stormbringer [2] (DVD-V)
Rick Derringer - Spring Fever [2] (SACD)
Neil Diamond - Serenade [1]
The Doobie Bros. - Stampede [2] (Quadio Blu-Ray)
Eagles - One of These Nights [1]
Earth, Wind & Fire - Gratitude [3] (5.1 SACD)
Earth, Wind & Fire - That's the Way of the World [2] (SACD)
Brian Eno - Another Green World [3] (streaming)
Fireballet - Night on Bald Mountain [1]
Jun Fukamachi - Introducing Jun Fukamachi [1]
Jun Fukamachi 21st Century Band - Rokuyu [1]
Fleetwood Mac - S/T (5.1 DVD-V)
Dan Fogelberg - Captured Angel [2] (streaming)
David Gates - Never Let Her Go [1]
Art Garfunkel - Breakaway [2] (SACD)
Gentle Giant - Free Hand [2] (DVD-V), [3] (Atmos Blu-Ray)
Graham Central Station - Ain't No Bout-A-Doubt It [1]
Harold Melvin & The Blue Notes - Wake Up Everybody [2] (SACD)
Hawkwind - Warrior on the Edge of Time [3] (5.1 DVD-V)
Hot Tuna - America's Choice [1]
Hot Tuna - Yellow Fever [1]
The Hues Corporation - Love Corporation [2] (SACD)
Janis Ian - Between the Lines [1]
Janis Ian - Aftertones [1]
The Isley Brothers - The Heat Is On [2] (SACD)
Keith Jarrett - Death and the Flower [1]
Keith Jarrett - Backhand [1]
Jefferson Starship - Red Octopus [2] (Quadio Blu-Ray)
Jethro Tull - Minstrel in the Gallery [2] (DVD-V) [3] (5.1 DVD-V)
Elton John - Captain Fantastic and the Brown Dirt Cowboy [3] (5.1 SACD)
Quincy Jones - Mellow Madness [1]
Labelle - Phoenix [2] (streaming)
Gordon Lightfoot - Cold on the Shoulder [1]
Dave Mason - Split Coconut [2] (streaming)
Chuck Mangione - Bellavia [1]
Chuck Mangione - Chase the Clouds Away [1]
Barry Manilow - Tryin' to Get the Feeling [1]
Paul McCartney & Wings - Venus & Mars [2] (DTS CD)
Van McCoy - Disco Baby [1]
Sergio Mendes - Self-Titled [1]
MFSB - Philadelphia Freedom [2] (SACD)
Joni Mitchell - The Hissing of Summer Lawns [2] (Quadio Blu-Ray)
Modern Jazz Quartet - The Last Concert [1]
Michael Murphey - Swans Against the Sun [2] (streaming)
Nektar - Down to Earth [1]
Harry Nilsson - Duit on Mon Dei [2] (streaming)
Ohio Players - Honey [2] (DTS CD)
Mike Oldfield - Ommadawn [1], [3] (5.1 DVD-V)
Tony Orlandow & Dawn - He Don't Love You Like I Love You [1]
The O'Jays - Survival [2] (SACD)
The O'Jays - Family Reunion [2] (SACD)
Pink Floyd - Wish You Were Here [2] (Blu-Ray), [3] (5.1 Blu-Ray)
Elvis Presley - Promised Land [2] (streaming)
Elvis Presley - Today [2] (streaming)
Pure Prairie League - Two Lane Highway [2] (SACD)
Queen - A Night at the Opera [3] (DVD-A)
Lou Reed - Metal Machine Music [2] (DVD-V)
REO Speedwagon - This Time We Mean It [2] (SACD)
Cat Stevens - Greatest Hits [1]
Minnie Riperton - Adventures in Paradise [1]
Rush - Fly by Night (5.1 DVD-A)
Smokey Robinson - A Quiet Storm [3] (Atmos streaming)
Seals & Crofts - I'll Play For You [1]
Carly Simon - Playing Possum [1]
Carly Simon - Greatest Hits [1]
Paul Simon - Still Crazy After All These Years [1]
The Spinners - Pick of the Litter [1]
Rod Stewart - Atlantic Crossing [1] (unreleased)
Steven Stills - Stills [2] (DTS CD)
Sly Stone - High on You [1]
Souther, Hillman, Furay Band - Trouble in Paradise [1]
Barbra Streisand - Lazy Afternoon [1]
Stylistics - Thank You Baby [1]
Stylistics - You Are Beautiful [1]
Synergy - Electronic Realizations for Rock Orchestra [1]
James Taylor - Gorilla [1]
Three Dog Night - Coming Down Your Way [1]
Tanya Tucker - Greatest Hits [2] (streaming)
Thijs van Leer - Introspection II [1]
Rick Wakeman - The Myths and Legends of King Arthur and the Knights of the Round Table [2] (DVD-V)
WAR - Why Can't We Be Friends? [1] (unreleased)
Dionne Warwicke - Then Came You [1]
Dionne Warwicke - Track of the Cat [1] (unreleased)
Weather Report - Tale Spinnin' [2] (SACD)
Edgar Winter - Jasmine Nightdreams [2] (DTS CD, streaming)
Edgar Winter Group - With Rick Derringer [2] (streaming)
Johnny Winter - John Dawson Winter III [2] (streaming)
The Wiz - Soundtrack [1]
Neil Young - Zuma [3] (Atmos streaming)


And a bunch of personal choices for things that have no quad or surround mix of any sort:

10cc - The Original Soundtrack
Alphonse Mouzon - Mind Transplant
Ambrosia - S/T
Average White Band - Cut the Cake
Billy Cobham - A Funky Thide of Sings (next to Spectrum, Cobham's best album)
Bob James - Two
The Brecker Bros - S/T
Commodores - Caught in the Act / Movin' On
David Sanborn - Takin' Off
Eleventh House with Larry Coryell - Level One
Funkadelic - Let's Take It to the Stage
Harold Melvin & The Blue Notes - To Be True
Herbie Hancock - Man-Child
Bobby Hutcherson - Linger Lane
Leroy Hutson - Hutson
Jean-Luc Ponty - Upon the Wings of Music
Joe Beck (w/David Sanborn) - Beck
Kool & The Gand - Spirit of the Boogie
Lenny White - Venusian Summer
Lynyrd Skynyrd - Nuthin' Fancy
Mahavishnu Orchestra - Visions of the Emerald Beyond (originally produced by @Ken_Scott this would make a great choice for his next Atmos mix)
MFSB - Universal Love
Parliament - Mothership Connection (and Chocolate City)
Return to Forever - No Mystery
Rufus featuring Chaka Khan - S/T
Donna Summer - Love to Love You Baby
Grover Washington Jr. - Mister Magic

 

[sjcorne]

Oh--also: 1975 was sort of the beginning of the end for quad, right? Maybe one of you statisticians out there can

1. Cull my list for albums that had a quad release;
2. Calculate the percentage of (1) that were eventually re-released in a modern, higher-res format; and
3. Do a shortlist of (1) and/or (2) (and/or 0, for that matter) that have (also?) had a 5.1 and/or Atmos "upgrade," in either physical or streaming form.

@humprof of the 100 albums currently on your list (more will probably have been added by the time this is posted), by my count just 33 are currently available in some form of surround.

Of those 33, 23 were mixed to quad in the '70s...

1. Aerosmith - Toys In The Attic (SQ/Q8)
2. America - Hearts (CD-4/Q8/QR)
3. Jeff Beck - Blow By Blow (SQ/Q8)
4. Captain & Tennille - Love Will Keep Us Together (CD-4/Q8)
5. Doobie Brothers - Stampede (CD-4/Q8/QR)
6. Eagles - One of These Nights (CD-4/Q8)
7. Earth, Wind & Fire - That's The Way of the World (SQ/Q8)
8. Gentle Giant - Free Hand (unreleased until 2012 CD/DVD edition)
9. Janis Ian - Between The Lines (SQ)
10. Isley Brothers - The Heat Is On (unreleased until 2024 SACD)
11. Jefferson Starship - Red Octopus (CD-4/Q8/QR)
12. Jethro Tull - Minstrel In The Gallery (unreleased until 2015 40th anniversary edition)
13. Harold Melvin & The Blue Notes - Wake Up Everybody (SQ)
14. Joni Mitchell - The Hissing of Summer Lawns (CD-4/Q8)
15. Ohio Players - Honey (CD-4/Q8)
16. Mike Oldfield - Ommadawn (SQ/Q8)
17. Pink Floyd - Wish You Were Here (SQ/Q8)
18. Lou Reed - Metal Machine Music (CD-4/Q8)
19. Paul Simon - Still Crazy After All These Years (SQ/Q8)
20. Synergy - Electronic Realizations For Rock Orchestra (QS/Q8)
21. James Taylor - Gorilla (CD-4/Q8/Q4)
22. Weather Report - Tale Spinnin' (SQ/Q8)
23. Wings - Venus and Mars (Q8)

...and 16 have been remixed to 5.1 surround or Dolby Atmos in the 21st century:

1. Aerosmith - Toys In the Attic (5.1 SACD)
2. Alice Cooper - Welcome to My Nightmare (5.1 DVD-A)
3. David Bowie - Young Americans (5.1 DVD)
4. Camel - The Snow Goose (5.1 Blu-Ray)
5. Bob Dylan - Blood on the Tracks (5.1 SACD)
6. Earth, Wind & Fire - Gratitude (5.1 SACD)
7. Fleetwood Mac - Fleetwood Mac (5.1 DVD + Streaming Atmos)
8. Gentle Giant - Free Hand (5.1/Atmos Blu-Ray)
9. Jethro Tull - Minstrel In The Gallery (5.1 DVD)
10. Elton John - Captain Fantastic and the Brown Dirt Cowboy (5.1 SACD)
11. Joni Mitchell - The Hissing of Summer Lawns (Atmos Blu-Ray)
12. Pink Floyd - Wish You Were Here (5.1 SACD/Blu-Ray)
13. Queen - A Night at the Opera (5.1 DVD-A/Blu-Ray/DVD)
14. Rush - Fly By Night (5.1 DVD-A/Blu-Ray)
15. Chris Squire - Fish Out of Water (5.1 DVD/Blu-Ray)
16. Van der Graaf Generator - Godbluff (5.1 DVD/Blu-Ray)

*We also know of forthcoming Atmos mixes for Grateful Dead - Blues for Allah and Wings - Venus and Mars*

Of those 23 quads, 15 of them have been re-released on optical media:

1. America - Hearts (2016 AF SACD)
2. Jeff Beck - Blow By Blow (2001 Sony SACD/2014 Sony Japan SACD/2016 AP SACD - 5.1 adapted from vintage 4.0 master)
3. Doobie Brothers - Stampede (2020 Quadio Blu-Ray)
4. Earth, Wind & Fire - That's The Way of the World (2020 DV SACD)
5. Gentle Giant - Free Hand (2012 CD/DVD edition)
6. Isley Brothers - The Heat Is On (2024 DV SACD)
7. Jefferson Starship - Red Octopus (2023 Quadio Blu-Ray)
8. Jethro Tull - Minstrel In The Gallery (2015 40th anniversary CD/DVD edition)
9. Harold Melvin & The Blue Notes - Wake Up Everybody (2020 DV SACD)
10. Joni Mitchell - The Hissing of Summer Lawns (2024 Quadio Blu-Ray)
11. Ohio Players - Honey (2001 DTS-CD - 5.1 adapted from vintage 4.0 master)
12. Pink Floyd - Wish You Were Here (2011 Immersion Blu-Ray)
13. Lou Reed - Metal Machine Music (2010 Blu-Ray)
14. Weather Report - Tale Spinnin' (2019 D-V SACD)
15. Wings - Venus and Mars (1996 DTS-CD - 5.1 adapted from vintage 4.0 master)

 

[humprof]

This is everything I could find for 1975, between my own collection and spreadsheets I keep - it's extensive but not exhaustive, I didn't include most country or easy listening releases.

I think I used the same legend as you, but just in case [1] = quad mix, [2] = quad mix with a digital multichannel reissue (or streaming) and [3] = modern 5.1 or Atmos remix.

Aerosmith - Toys in the Attic [1], [3] (5.1 SACD)
America - Hearts [2] (SACD)
Joan Baez - Diamonds & Rust [1]
Bachman-Turner Overdrive - Four Wheel Drive [1]
Jeff Beck - Blow by Blow [2] (SACD)
Blood, Sweat & Tears - New City [2] (SACD)
David Bowie - Young Americans [3] (5.1 DVD-V)
Camel - The Snow Goose [3] (5.1 Blu-Ray)
The Captain & Tennille - Love will Keep Us Together [1]
Carpenters - Horizon [1]
Chicago - VIII [2] (Quadio Blu-Ray)
Climax Blues Band - Stamp Album [1] (unreleased)
Judy Collins - Judith [1]
Alice Cooper - Welcome to My Nightmare [3] (5.1 DVD-A)
Eric Clapton - There's One in Every Crowd [2] (Blu-Ray)
Mac Davis - Burnin' Thing [2] (SACD)
Deep Purple - Stormbringer [2] (DVD-V)
Rick Derringer - Spring Fever [2] (SACD)
Neil Diamond - Serenade [1]
The Doobie Bros. - Stampede [2] (Quadio Blu-Ray)
Eagles - One of These Nights [1]
Earth, Wind & Fire - Gratitude [3] (5.1 SACD)
Earth, Wind & Fire - That's the Way of the World [2] (SACD)
Brian Eno - Another Green World [3] (streaming)
Fireballet - Night on Bald Mountain [1]
Jun Fukamachi - Introducing Jun Fukamachi [1]
Jun Fukamachi 21st Century Band - Rokuyu [1]
Fleetwood Mac - S/T (5.1 DVD-V)
Dan Fogelberg - Captured Angel [2] (streaming)
David Gates - Never Let Her Go [1]
Art Garfunkel - Breakaway [2] (SACD)
Gentle Giant - Free Hand [2] (DVD-V), [3] (Atmos Blu-Ray)
Graham Central Station - Ain't No Bout-A-Doubt It [1]
Harold Melvin & The Blue Notes - Wake Up Everybody [2] (SACD)
Hawkwind - Warrior on the Edge of Time [3] (5.1 DVD-V)
Hot Tuna - America's Choice [1]
Hot Tuna - Yellow Fever [1]
The Hues Corporation - Love Corporation [2] (SACD)
Janis Ian - Between the Lines [1]
Janis Ian - Aftertones [1]
The Isley Brothers - The Heat Is On [2] (SACD)
Keith Jarrett - Death and the Flower [1]
Keith Jarrett - Backhand [1]
Jefferson Starship - Red Octopus [2] (Quadio Blu-Ray)
Jethro Tull - Minstrel in the Gallery [2] (DVD-V) [3] (5.1 DVD-V)
Elton John - Captain Fantastic and the Brown Dirt Cowboy [3] (5.1 SACD)
Quincy Jones - Mellow Madness [1]
Labelle - Phoenix [2] (streaming)
Gordon Lightfoot - Cold on the Shoulder [1]
Dave Mason - Split Coconut [2] (streaming)
Chuck Mangione - Bellavia [1]
Chuck Mangione - Chase the Clouds Away [1]
Barry Manilow - Tryin' to Get the Feeling [1]
Paul McCartney & Wings - Venus & Mars [2] (DTS CD)
Van McCoy - Disco Baby [1]
Sergio Mendes - Self-Titled [1]
MFSB - Philadelphia Freedom [2] (SACD)
Joni Mitchell - The Hissing of Summer Lawns [2] (Quadio Blu-Ray)
Modern Jazz Quartet - The Last Concert [1]
Michael Murphey - Swans Against the Sun [2] (streaming)
Nektar - Down to Earth [1]
Harry Nilsson - Duit on Mon Dei [2] (streaming)
Ohio Players - Honey [2] (DTS CD)
Mike Oldfield - Ommadawn [1], [3] (5.1 DVD-V)
Tony Orlandow & Dawn - He Don't Love You Like I Love You [1]
The O'Jays - Survival [2] (SACD)
The O'Jays - Family Reunion [2] (SACD)
Pink Floyd - Wish You Were Here [2] (Blu-Ray), [3] (5.1 Blu-Ray)
Elvis Presley - Promised Land [2] (streaming)
Elvis Presley - Today [2] (streaming)
Pure Prairie League - Two Lane Highway [2] (SACD)
Queen - A Night at the Opera [3] (DVD-A)
Lou Reed - Metal Machine Music [2] (DVD-V)
REO Speedwagon - This Time We Mean It [2] (SACD)
Cat Stevens - Greatest Hits [1]
Minnie Riperton - Adventures in Paradise [1]
Rush - Fly by Night (5.1 DVD-A)
Smokey Robinson - A Quiet Storm [3] (Atmos streaming)
Seals & Crofts - I'll Play For You [1]
Carly Simon - Playing Possum [1]
Carly Simon - Greatest Hits [1]
Paul Simon - Still Crazy After All These Years [1]
The Spinners - Pick of the Litter [1]
Rod Stewart - Atlantic Crossing [1] (unreleased)
Steven Stills - Stills [2] (DTS CD)
Sly Stone - High on You [1]
Souther, Hillman, Furay Band - Trouble in Paradise [1]
Barbra Streisand - Lazy Afternoon [1]
Stylistics - Thank You Baby [1]
Stylistics - You Are Beautiful [1]
Synergy - Electronic Realizations for Rock Orchestra [1]
James Taylor - Gorilla [1]
Three Dog Night - Coming Down Your Way [1]
Tanya Tucker - Greatest Hits [2] (streaming)
Thijs van Leer - Introspection II [1]
Rick Wakeman - The Myths and Legends of King Arthur and the Knights of the Round Table [2] (DVD-V)
WAR - Why Can't We Be Friends? [1] (unreleased)
Dionne Warwicke - Then Came You [1]
Dionne Warwicke - Track of the Cat [1] (unreleased)
Weather Report - Tale Spinnin' [2] (SACD)
Edgar Winter - Jasmine Nightdreams [2] (DTS CD, streaming)
Edgar Winter Group - With Rick Derringer [2] (streaming)
Johnny Winter - John Dawson Winter III [2] (streaming)
The Wiz - Soundtrack [1]
Neil Young - Zuma [3] (Atmos streaming)


And a bunch of personal choices for things that have no quad or surround mix of any sort:

10cc - The Original Soundtrack
Alphonse Mouzon - Mind Transplant
Ambrosia - S/T
Average White Band - Cut the Cake
Billy Cobham - A Funky Thide of Sings (next to Spectrum, Cobham's best album)
Bob James - Two
The Brecker Bros - S/T
Commodores - Caught in the Act / Movin' On
David Sanborn - Takin' Off
Eleventh House with Larry Coryell - Level One
Funkadelic - Let's Take It to the Stage
Harold Melvin & The Blue Notes - To Be True
Herbie Hancock - Man-Child
Bobby Hutcherson - Linger Lane
Leroy Hutson - Hutson
Jean-Luc Ponty - Upon the Wings of Music
Joe Beck (w/David Sanborn) - Beck
Kool & The Gand - Spirit of the Boogie
Lenny White - Venusian Summer
Lynyrd Skynyrd - Nuthin' Fancy
Mahavishnu Orchestra - Visions of the Emerald Beyond (originally produced by @Ken_Scott this would make a great choice for his next Atmos mix)
MFSB - Universal Love
Parliament - Mothership Connection (and Chocolate City)
Return to Forever - No Mystery
Rufus featuring Chaka Khan - S/T
Donna Summer - Love to Love You Baby
Grover Washington Jr. - Mister Magic

@humprof of the 100 albums currently on your list (more will probably have been added by the time this is posted), by my count just 33 are currently available in some form of surround.

Of those 33, 23 were mixed to quad in the '70s...

1. Aerosmith - Toys In The Attic (SQ/Q8)
2. America - Hearts (CD-4/Q8/QR)
3. Jeff Beck - Blow By Blow (SQ/Q8)
4. Captain & Tennille - Love Will Keep Us Together (CD-4/Q8)
5. Doobie Brothers - Stampede (CD-4/Q8/QR)
6. Eagles - One of These Nights (CD-4/Q8)
7. Earth, Wind & Fire - That's The Way of the World (SQ/Q8)
8. Gentle Giant - Free Hand (unreleased until 2012 CD/DVD edition)
9. Janis Ian - Between The Lines (SQ)
10. Isley Brothers - The Heat Is On (unreleased until 2024 SACD)
11. Jefferson Starship - Red Octopus (CD-4/Q8/QR)
12. Jethro Tull - Minstrel In The Gallery (unreleased until 2015 40th anniversary edition)
13. Harold Melvin & The Blue Notes - Wake Up Everybody (SQ)
14. Joni Mitchell - The Hissing of Summer Lawns (CD-4/Q8)
15. Ohio Players - Honey (CD-4/Q8)
16. Mike Oldfield - Ommadawn (SQ/Q8)
17. Pink Floyd - Wish You Were Here (SQ/Q8)
18. Lou Reed - Metal Machine Music (CD-4/Q8)
19. Paul Simon - Still Crazy After All These Years (SQ/Q8)
20. Synergy - Electronic Realizations For Rock Orchestra (QS/Q8)
21. James Taylor - Gorilla (CD-4/Q8/Q4)
22. Weather Report - Tale Spinnin' (SQ/Q8)
23. Wings - Venus and Mars (Q8)

...and 16 have been remixed to 5.1 surround or Dolby Atmos in the 21st century:

1. Aerosmith - Toys In the Attic (5.1 SACD)
2. Alice Cooper - Welcome to My Nightmare (5.1 DVD-A)
3. Bowie, David - Young Americans (5.1 DVD)
4. Camel - The Snow Goose (5.1 Blu-Ray)
5. Bob Dylan - Blood on the Tracks (5.1 SACD)
6. Earth, Wind & Fire - Gratitude (5.1 SACD)
7. Fleetwood Mac - Fleetwood Mac (5.1 DVD + Streaming Atmos)
8. Gentle Giant - Free Hand (5.1/Atmos Blu-Ray)
9. Jethro Tull - Minstrel In The Gallery (5.1 DVD)
10. Elton John - Captain Fantastic and the Brown Dirt Cowboy (5.1 SACD)
11. Joni Mitchell - The Hissing of Summer Lawns (Atmos Blu-Ray)
12. Pink Floyd - Wish You Were Here (5.1 SACD/Blu-Ray)
13. Queen - A Night at the Opera (5.1 DVD-A/Blu-Ray/DVD)
14. Rush - Fly By Night (5.1 DVD-A/Blu-Ray)
15. Chris Squire - Fish Out of Water (5.1 DVD/Blu-Ray)
16. Van der Graaf Generator - Godbluff (5.1 DVD/Blu-Ray)

*We also know of forthcoming Atmos mixes for Grateful Dead - Blues for Allah and Wings - Venus and Mars

Of those 23 quads, 15 of them have been re-released on optical media:

1. America - Hearts (2016 AF SACD)
2. Jeff Beck - Blow By Blow (2001 Sony SACD/2014 Sony Japan SACD/2016 AP SACD - 5.1 adapted from vintage 4.0 master)
3. Doobie Brothers - Stampede (2020 Quadio Blu-Ray)
4. Earth, Wind & Fire - That's The Way of the World (2020 DV SACD)
5. Gentle Giant - Free Hand (2012 CD/DVD edition)
6. Isley Brothers - The Heat Is On (2024 DV SACD)
7. Jefferson Starship - Red Octopus (2023 Quadio Blu-Ray)
8. Jethro Tull - Minstrel In The Gallery (2015 40th anniversary CD/DVD edition)
9. Harold Melvin & The Blue Notes - Wake Up Everybody (2020 DV SACD)
10. Joni Mitchell - The Hissing of Summer Lawns (2024 Quadio Blu-Ray)
11. Ohio Players - Honey (2001 DTS-CD - 5.1 adapted from vintage 4.0 master)
12. Pink Floyd - Wish You Were Here (2011 Immersion Blu-Ray)
13. Lou Reed - Metal Machine Music (2010 Blu-Ray)
14. Weather Report - Tale Spinnin' (2019 D-V SACD)
15. Wings - Venus and Mars (1996 DTS-CD - 5.1 adapted from vintage 4.0 master)

Wow--geniuses at work! You guys don't let the moss grow under your feet. (And @steelydave, thanks for fleshing out the list. Some personal faves of mine there, too, on both your surround and non-surround list--including too many that I overlooked.)