Adriana Spuria’s new single, “Stone,” presents itself with the polished feel of a perfect skipping-stone, but listening closely reveals it has the curious weight of a fossil in your palm. Spuria sings of a very specific, modern affliction: the slow petrification of the heart. This is a loneliness born not from solitude, but from an inability to feel for anyone else, an insulation that...

It’s a rare and bewildering thrill to encounter something as organically bizarre and entirely transportive as Koradan’s newest album, "Around the World...Music". The Italian duo Alex Baccari and Marzia Di Cicco are dedicated acoustic alchemists. They build the very tools they play. Through their patented centerpiece, the "Koritas," they have physically fused materials harvested from five different continents into a single resonating chamber. You...