At 2 a.m., the smallest thought can take over the room. Stargazer understands that escalation on Insomniac, a debut single that compresses insomnia, anxiety and emotional isolation into 2:27 of alternative rock, emo, electronic production and hip-hop-influenced delivery. It moves with the pace of someone trying to outthink their own fear, then finding that the mind has already sprinted ahead. The song refuses the easy...

SERAh's new single, "Favorite Game", which features female vocalist Summer Rona, is the kind of track that feels less like it was composed and more like it was captured—a distress signal from a beautiful, dying star. The sound here is a curious contradiction. It’s vast and cinematic, shimmering with the sort of synthesized light that promises galaxies, but its heart is small, cramped, and...