Robbie Rapids drops "Class 2 Rapids" onto the table like a heavy set of keys to houses you used to live in, but can’t quite remember the address of. This Atlanta-based Gen X rocker has assembled a collection that feels less like a polished studio product and more like a glove compartment mixtape that has survived three car wrecks and a cross-country move. It...

The fiercely independent, Idaho-raised rapper nick! channels a deeply overstimulated, restless frequency on his new EP, "GEEKED!". Born in 2006 and building a fervent following entirely without industry co-signs, he occupies an interesting lane in new-wave underground hip-hop. His music sounds precisely like the brain chemistry of an internet-raised creative processing the blinding speed of newfound success. He writes and produces melodic, hard-hitting rap...