In his round X-ray specs and solar-system button-up, Garrett T. Capps looks like he’s just emerged from the farthest reaches of outer space. The San Antonio musician sounds like it, too. Since forming his band NASA Country in 2017, Capps has been working to introduce an unconventional new sound into country music, one that mixes the electronic, experimental hum of Kraftwerk with the cosmic hippie twang of Doug Sahm. Capps calls it “Kraut-country.” Perhaps shockingly, it works. Capps’ new album, People Are Beautiful, is an urgent, inventive reimagining of Texas music. He sings with a traditional country inflection about topics...