There’s a curious sort of old-soul gravity to Amelina’s single, “Step by Step,” one that defies the pop-rock sheen and the artist’s young age. The track opens with a resolute, almost stern, string and piano line that feels less like an invitation to a party and more like the sound of someone tying their shoelaces before a long journey. This is the sound of...

In the world of hip-hop, there is a continual ebb and flow of new talent, but every once in a while, a performance will come along that will seem like a revelation. The very talented Eyst and Mac Keller form one half of the dynamic duo known as Apolloïd, which is based in Neuilly-sur-Marne and hails from France. It's like witnessing lightning in a bottle when...