100 Songs

The greatest? Probaby not, but some good ones, not in any particular order, arranged by genre, title, artist, album. Some obvious, some obscure. Feel free to recommend.

(Art Music / Opera) 

"Adagio in G Minor for Organ and Strings" - Tomaso Albinoni.
"Der Erlkönig" - Franz Schubert.
"Evening Song" - Philip Glass, Act III, Scene III, Satyagrha.
"Lux Aeterna" - John Rutter, Movement VII, Requiem.
"Night on Bald Mountain" - Modest Mussorgsky.

(Classic Rock)

"Back on Earth" - Ozzy Osbourne, The Ozzman Cometh.
"Black Sabbath" - Black Sabbath, Black Sabbath.
"Bohemian Rhapsody" - Queen, A Night at the Opera.
"Gimme Shelter" - The Rolling Stones, Let it Bleed.
"Planet Caravan" - Black Sabbath, Paranoid.
"Stairway to Heavem" - Led Zeppelin, IV.
"Us and Them" - Pink Floyd, The Dark Side of the Moon.
"White Room" - Cream, Wheels of Fire.

(Contemporary Pop / Rock / Alternative / R&B / A Catch-All Category for Music of the Last Decade or So)

"100 Yard Dash" - Raphael Saadiq, The Way I See It.
"Black" - Danger Mouse & Danielle Luppi featuring Norah Jones, Rome.
"Brian Eno" - MGMT, Congratulations.
"Called Out in the Dark" - Snow Patrol, Fallen Empires.
“Colours” – Grouplove, Never Trust a Happy Song.
"Comfort Eagle" - Cake, Comfort Eagle.
"Crossfire" - Brandon Flowers, Flamingo.
"Daniel" - Bat for Lashes, Two Suns.
"Dashboard" - Modest Mouse, We Were Dead Before the Ship Even Sank.
“El Mañana” – Gorillaz, Demon Days.
"Extraños" - Siddhartha, Náufrago.
"Go Do" - Jónsi, Go.
“Hanging On” – Active Child, You Are All I See.
"Helena Beat" - Foster the People, Torches.
"Home" - Glasser, Ring.
“Hoy” – Bajofondo featuring Juan Subira, Mar Dulce.
"I Belong in Your Arms" - Chairlift, Something.
"Knights of Cydonia" - Muse, Black Holes and Revelations.
"Little Talks" - Of Monsters and Men, My Head is an Animal.
"Meet Me Halfway" - The Black Eyed Peas, The E.N.D. (The Energy Never Dies).
"Midnight City" - M83, Hurry Up, We're Dreaming.
"MoneyGrabber" - Fitz & The Tantrums, Pickin' Up the Pieces.
"Monster" - Lady GaGa,  The Fame Monster.
"My Boy Builds Coffins" - Florence + The Machine, Lungs.
"Nightlight" - Little Dragon, Ritual Union.
"On Melancholly Hill" - Gorillaz, Plastic Beach.
"Salvador" - Francisca Valenzuela, Buen Soldado.
"Sexx Laws" - Beck, Midnight Vultures.
“She’ll Drive the Big Car” – David Bowie, Reality.
"Somebody That I Used to Know" - Gotye, Making Mirrors.
"Stranger Lover" - Ghostland Observatory, Paparazzi Lightning.
"Terrified" - Among Savages, Wanderings of an Illustrative Mind.
"This Fire" - Franz Ferdinand, Franz Ferdinand.
"When You Were Young" - The Killers, Sam's Town.
"Wonderman" - Tinie Tempah featuring Ellie Goulding, Disc-Overy.
“The World We Live In” – The Killers, Day & Age.

(Dance / Alt-Dance / House / Electronic)

"Bizarre Love Triangle" - New Order, Brotherhood.
“Mermaid” – Anamanaguchi, Dawn Metropolis.
"One More Time" - Daft Punk, Discovery.
"True Faith" - New Order, Substance.
"Say My Name" - Holy Ghost! , Holy Ghost! .
"Somewhere Inside" - Allure featuring Julie Thompson, Tiësto, In Search of Sunrise 6: Ibiza.

(Folk / Folk-Rock / Bluegrass)

"Blue Ridge Mountains" - Fleet Foxes, Fleet Foxes.
"Death Came Knockin' " - The Duhks, The Duhks.
"O Mary Don't You Weep" - Spiritual interpereted by Bruce Springsteen, We Shall Overcome: The Seeger Sessions.
"Down By the Water" - The Decemberists, The King is Dead.

(Metal) 

"Blue" - A Perfect Circle, The Thirteenth Step.
"Cardboard Believer" - Full Devil Jacket, Full Devil Jacket.
“Coma White” – Marilyn Manson, Mechanical Animals.
"Coming Home" - Scorpions, Love at First Sting.
"The Coming Curse" - Iced Earth, Something Wicked This Way Comes.
"Dig Up Her Bones" - The Misfits, American Psycho.
"Eyes of a Stranger" - Queensrÿche, Operation: Mindcrime.
"Fade to Black" - Metallica, Ride the Lightning.
"Forest" - System of a Down, Toxicity.
"Mouth for War" - Pantera, Vulgar Display of Power.
"Nightfall" - Blind Guardian, Nightfall in Middle Earth.
"Parabol" / "Parabola" - Tool, Lateralus.
"Rime of the Ancient Mariner" - Iron Maiden, Powerslave.
"Silent Lucidity" - Queensrÿche, Empire.
"Superbeast" - Rod Zombie, Hellbilly Deluxe.
"Unforgiven" - Metallica, Metallica.
"Wayfaerer" - In Flames, The Jester Race.
"World Coming Down" - Type O Negative, World Coming Down.

(Musical, Rock-Opera, Stage / Film) 

"All I Ask of You" - Andrew Lloyd Webber, Charles Hart, Act I Finale, Phantom of the Opera.
"Comfort and Joy" - Laurence O' Keefe, Act I Finale, Bat Boy: The Musical.
"Make Our Garden Grow" - Leonard Bernstein, Act II Finale, Candide.
"The Trial" - Roger Waters, Pink Floyd, Act II Finale, The Wall.
"Super Heroes" - Richard O' Brien, Act II Conclusion, Rocky Horror (Picture) Show.

(Retro Pop / Rock / Alternative / Catch-All Category for Music of the Previous Century) 

"Beautiful Loser" - Bob Seger, Beautiful Loser.
“Crazy” – Seal, Seal (1991).
“Easy Lover” – Philip Bailey, Chinese Wall.
“Land of Confusion” – Genesis, Invisible Touch.
“Let Your Soul Be Your Pilot” – Sting, Mercury Falling.
“Losing My Religion” – R.E.M., Out of Time.
“Love Comes Quickly” – Pet Shop Boys, Please.
“Made of Stone” – The Stone Roses, The Stone Roses.
“Marianne” – Tori Amos, Boys for Pele.
"Morning Glory" - Oasis, (What's the Story) Morning Glory?.
"New Year's Day" - U2, War.
“Never Let Me Down Again” – Depeche Mode, Music for the Masses.
“Rotten Apple” – Alice in Chains, Jar of Flies.
"Steam" - Peter Gabriel, Secret World Live.
"Thriller” – Michael Jackson, Thriller.
"Tonight, Tonight" - The Smashing Pumpkins, Mellon Collie and the Infinite Sadness.
"Under Pressure" - Queen and David Bowie, Hot Space.