Amy-Lin Slezak’s “Known 3 Yrs. Seen 24 Hrs” opens with the bright, optimistic twang of country pop, a sound so sun-drenched you can almost feel the heat coming off the asphalt. The fiddle weaves itself through clean acoustic strums and soaring electric guitars, a musical language we all know. But the story it tells is something wonderfully specific, a peculiar ache you didn't know...

When Los Angeles's Love Ghost made their new song "Dopeman," they mixed the raw energy of alternative rock with the pounding beats of Afrobeat in a way that is both bold and surprising. Ghanaian musician Camidoh and DJ Switch Ghana, who is also from Ghana and has great turntable skills, work together on this international project. It has a rhythm that is both creative and...