I guess this one's not really a gif so I'm failing my own gimmick.
Buddyhunter1: Anamanaguchi
1: ___e_ ___u_ (A__t__ A_the_)
2: Endless Fantasy
3: Sunset by Plane
4: __a_e _a_ A_e___a
??: Talk Talk
1: Happiness is Easy - 1997 Remaster
2: Ascension Day
3: Wealth - 1997 Remaster
Cyril: Mithras
1: When the Stars Align
2: Howling of the Distant Spaces
3: On Strange Loops
Elite: Obsidian Kingdom
1: Oncoming Dark
2: Through the Glass
3: Cinnamon Balls
4: The Polyarnik
5: Answers Revealing
6: Last of the Light
Stadler: Deep Purple
1: Lick It Up
2: No One Came
3: Sometimes I Feel Like Screaming
??: ATT_A_
1: _yat
2: ___e__e_
3: A _ay __ __ght
4: Ha__ __ght
??: Portishead
1: Mysterons
2: Sour Times
3: Roads
4: Glory Box
??: Be'Lakor
1: Countless Skies
2: The Smoke of Many Fires
Puppies_On_Acid: Enslaved
1: Ethica Odini
2: _e_ge_e___
TAC: Tribulation
1: Melancholia
2: Strains of Horror
3: Lacrimosa
??: we.own.the.sky
1: ___ga_
2: T_a__________ __ _tat__
3: Th__ __a_e _et_ee_ U_
Tomislav95: mewithoutYou
1: T___he_ T_gethe_
2: _a_ua_y ____
3: Julia (or, 'Holy to the LORD' on the Bells of Horses)
4: Another Head for Hydra
5: __ a __eate_ _____y ___t
??: Converge
1: Concubine
2: Fault and Fracture
3: Hell to Pay
4: Dark Horse
5: E_e
??: The ___e_ E____e_
1: The ___e_ E____e_ The_e _
2: __e_tu_e __ Tha_e_ _u__e_
3: Th_ee T_ge__
4: ____ _ut__de the _e__a_
5: The__, the ___
wolfking: Omnium Gatherum
1: The Second Flame
2: Gods Go First
3: Frontiers
4: Living In Me
Guessed letters: GTZDEYAUH