Ettie, who was born and raised in London, is a phenomenon in the music industry because of her lyrical alchemy, which transforms cultural touchstones and personal histories into pure alt-pop gold. She is able to compose alternative pop songs that speak to the anxiety that is felt by millennials because of the gift of being able to play with words. Ettie, who has a degree in...

Helladdict’s new single, “Sudden Death,” doesn’t feel like a tribute; it feels like an exhumation. Here are six men from Santiago, all seasoned enough to know that pure fury is a young person’s game, offering instead the far more corrosive anger of experience. They resurrect the chassis of 80s thrash, all bone-raw intensity and punishing tempo, but the engine is modern, built with the...