Wow. That was goodUnlucky Morpheus - Eruption [Violin Cover] (2021)
Still digging this one a lot. Sounds like 70s-era guitars delivering early 80s NWOBHM riffs, with an overall feel reminiscent of very early Queensrÿche crossed with 80s Maiden, though it just came out this year.
Thanks for the tip, @Edington !