[Mag]

  I'll start 'er off with Tarkus- ELP, Show that Never Ends
For me Keith Emerson demonstrates his mastery of the keyboard in this great composition. Like he pulled off this outlandish synth work On Stage when synths where still primitive. However his use of the sequencer almost does the song in for me but I overlook this because he must of realized it too and changes it up.
  I've been listening to this song for like 40 years and it has stood the test of time. A Masterpiece and work of Art.

[James Edward]

‘All Of The Above’ - Transatlantic

‘Supper’s Ready’ - Genesis

‘Ghosts’ - Stawbs

‘Animals’ - Entire Album - Pink Floyd

[richidoo]

'Night at Birdland' - Art Blakey

'Live in Europe' - Stan Kenton

'Goldberg Variations' - Glenn Gould (1981, analog remaster)

"Shostakovich Symphonies 5 and 9' - Kreizberg/Russian National Orchestra

[simoon]

This is very hard for me.

Not because I find it hard to come up with them, but I listen to 3 main genres of music, and within each are several subgenres. And within each, there are examples of pieces I consider to be masterpieces. And it would be impossible for me to consider the best of one genre or subgenre to be more worthy of being a masterpiece, than the best of another.

So, I will list several within each genre, but even this will be just a partial list.

Prog (symphonic, Zeuhl, avant-prog, Canterbury, prog-metal):

Yes - Gates of Delirium, Close to the Edge, Awaken
Genesis - Dancing Out With the Moolit Knight, almost the entirety of The Lamb Lies Down on Broardway
PFM - Per un Amico
Magma - Köhntarkösz Anteria, Mekanïk Destruktïw Kommandöh
Univers Zero - Jack the Ripper, Emanations
Banco - Io Sono Nato Libero
Il Balletto di Bronzo - YS
King Crimson - Larks' Tongues in Aspic part 1 and 2
Pain of Salvation - Remedy Lane
ELP - Tarkus
National Health - The Bryden 2-Step (for Amphibians) Part 1, part 2

Jazz (fusion, post-bop, avant-garde, chamber-jazz):
Mahavishnu Orchestra - Trilogy, Eternity's Breath
Return to Forever - The Duel of the Jester and the Tyrant, After the Cosmic Rain,
Allan Holdworth - The Un-Merry-Go- Round, Devil Take The Hindmost, Letters Of Marquee
John Coltrane - A Love Supreme
Steve Coleman's Natal Eclipse - Morphing
Steve Coleman and the 5 Elements - The Twelve Powers
Alice Coltrane - Isis and Osiris, Mantra
Anthony Braxton - Dk(Rhx) T U Gil-6 [Composition No. 40A],
John Abercrombie - Timeless

Classical (avant-garde, serial, 12 tone, atonal):
Elliot Carter - Variations for Orchestra, Three Illusions for Orchestra
Charles Wuorinen - 4th Piano Concerto, Iridule – 2006, for oboe and six players
Alban Berg - Violin Concerto
Joan Tower - Concerto for Orchestra, Silver Ladders
Bruno Maderna - 3rd Oboe Concerto
Ligeti - Ramifications, Violin Concerto
Bartok - Music for strings, percussion and celesta
Anna Þorvaldsdóttir (Thorvaldsdottir) - AIŌN

[drphoto]

Kinda Blue, Jazz at the Pawnshop, Dark Side of the Moon (& Meddle) , Foxtrot, The Yes Album and Aja. 

[Tyson]

Beethoven’s 5th and 7th conducted by Carlos Kleiber.

[Jazzman53]

Off the top of my head in no particular order:

Miles Davis - Kind of Blue (of course)
Grant Green - Idle Moments 
Bill Evans - Sunday at the Village Vanguard
Patricia Barber - Cafe Blue
Vanessa Fernandez - Use Me
Karen Souza - Hotel Souza
Melody Gardot - Sunsets in the Blue
Eliane Elias - Dreamer
Joni Mitchell - Jejira
Shelby Lynne - Just a Little Lovin'
Steely Dan - Aja
Boz Scaggs - Dig
The Doors - L.A. Woman
Jethro Tull - Aqualung
The Allman Brothers Band - Live at the Fillmore East







 

[Letitroll98]

This is today's list, tomorrow it could, and likely will change.
Classical: The Planets, Holst
Jazz vocalist: Closer Than They Appear, Sara K
Jazz instrumental: As Falls Wichita So Falls Wichita Falls, Pat Metheny Group
Rock: Let it Bleed, Rolling Stones
Country female: Golden Hour, Kacey Musgraves
Country male: Joshua Judges Ruth, Lyle Lovett