Listening to Arnold J.’s new single, "Muddy Waters," isn't quite like anything else swirling around right now. It arrives with the gentle insistence of incoming tide, pulling you into its specific gravity. Arnold J., Ghanaian-born and now Canada-based, weaves a sound tagged as alt-country and folk, but those labels feel thin, like trying to contain smoke. There’s earthiness, sure, but his soulful vocal lines...

From the German city of Delmenhorst, DJ Snudi has dispatched "Sugar Daddy," a single that lands with the curious thud of a velvet-wrapped brick. The track presents itself as a straightforward club banger, but listening to it is like trying to have a serious conversation in a room where someone keeps changing the lighting from sterile white to a pulsing, humid red. It’s disorienting,...