Way too many to list but I'll throw one out. Do you like Radiohead, REM, The National, Pixies, Frank Turner, or Dinosaur Jr.? Well, they (or their lead singer) all love Mark Mulcahy's music enough to have recorded a cover song for the tribute album when Mark's wife passed.

Mark led the band Miracle Legion, released some solo work, and led the band Polaris (not the metal band from Australia), best known as the band from the show The Adventures of Pete & Pete. Also noteworthy: Miracle Legion toured and released an EP with The Sugarcubes, aka Bjork's band.

Song recommendations: The Backyard, All For The Best by Miracle Legion - Hey Sandy, Saturnine by Polaris - Taking Baby Steps, The Fiddler, Hey Self Defeater by Mark Mulcahy.

Album recommendations: Drenched by Miracle Legion, Music from The Adventures of Pete & Pete by Polaris, and Fathering by Mark Mulcahy.

In general, Parliament/Funkadelic has a ton of artists within its scope worth exploring. George Clinton is probably the most famous among them, but there's also Eddie Hazel, Bootsy Collins, Gary Shider and his son Garrett Shider, Fred Wesley, and a lot more.

I also recently discovered a Japanese artist called Masaki Ueda who seems criminally unknown.

Jukebox the ghost. Criminally underrated, they'd have been as big as queen or muse if they had the right publicity and timing.

The Tallest Man on Earth. Probably the best modern folk artist, but not as well known as he should be.

Aimee Mann. One of the best songwriters of the 90s and 2000s. Popular, but not as much as she should be.

Placebo.

Talk Talk. Spirit of Eden is one of the greatest albums ever made, but not many people know about it.

Knower - pretty fucking sweet music with a good sense of humor.

Nick Drake.

Years ahead of his time and while he gets a lot of recognition posthumously in certain music circles, he didn't have any hits during his life, or even any hits after, so the average Joe hasn't heard of him.

All three of his albums are fantastic, though Five Leaves Left is my favorite.

The metalcore band Harm. IMO better than Spiritbox but only has like 3000 montly listeners on Spotify.

Easily Fish in a Birdcage, my number one vibeing artist.

Amigo the Devil - Cocaine and Abel, Perfect Wife, Murder at the Bingo Hall, Hell and You, Hungover in Jonestown... If one of these songs doesn't grab you, I don't think we can be friends

Froglord - The Mystic Toad, Wednesday, Army of Frogs

Snakemother - they only have one ~40 minute album, listen to it from start to finish. The first 5 minutes or so are pretty different than the rest so give it a chance.

Edit: came back to add Hippie Death Cult, my fave songs are Hornet Party, Nice to Know You, and Arise which is from the new album Helichrysum - worth giving the whole thing a listen as I think it's their best work to date

Do they have to be recent or alive? If not:

Sister Rosetta Tharpe - if there is any one person that can be attributed with inventing Rock'n'Roll, it is her, and she gets far too little credit for it. Watch this docu about her to find out more, or even better yet, listen to her songs.

Evade the Eye. Excellent guitar work, good songwriting. Genre: instrumental prog metal

Electric Storm by White Noise. Included the lady who recorded the Dr Who theme.

https://en.wikipedia.org/wiki/An_Electric_Storm

Listening to Dadi Freyr right now!

Ozric Tentacles

Panpticon, King Gizzard and the Lizard Wizard, Chat Pile, Ashenspire, Swans, Obongjayar, Black Midi, and emancipator

Neko Case! The voice of God with red hair, I call her. Also her other supergroup band The New Pornographers is amazing. A one of a kind voice.

Also Drive-By Truckers should be considered a worldwide treasure.

Orebolo - 3 guys playing acoustic perfection.

Goose - same 3 guys from Orebolo, but with the rest of the band, non-acoustic, and some good jams.

Nineteen Forty-Five

Their debut album, Together We'll Burn Like Autumn Leaves is solid gold all the way through; the second studio album I Saw a Bright Light is almost as solid. I like them so much I tracked down all the members' previous bands and solo projects and B-sides.

Destiny Potato. They released one spectacular album.

• All of Nerdcore really
• sleep token

Kamaiyah

Caroline Polachek.

The Revivalists are an incredible bluesy rock band, but everything of theirs on the radio is their blandest stuff. They really excel with live performances and amazing instrumentals.

"It Was a Sin" builds slow but gets really high energy by the end

"Soul Fight" has a top notch saxophone solo

Here's a full concert at Red Rocks

There's a really underrated band from Vancouver called Slightest Clue that just put out an album. Alternative/punk and very fun

katie dey https://www.youtube.com/channel/UC7eYvkSWhpemCVpPm0Mg9tQ

BONES/ Surrender Dorothy. he's gained a lot more listeners over the past few years so more people are discovering his music

Weird Al Yankovich

Wolfgang Amadeus Mozart

Antonin Dvorak

Cold blue

Death grips

Emma Ruth Rundle

TR/ST

Ionnalee

Keosz

Rival Consoles

I Will Keep Your Ghost

Moon Cathedral

Russian Circles

Norman Pain