That's a risky move, but Adele remains self-aware. The storyteller who once strummed in London's Brockwell Park with friends returns in those moments to balance out her experiments with the salt of her essential plainspokenness, the quality that has always made Adele herself. "Mama's got a lot to learn," she murmurs in the chorus of "My Little Love," a hip-hop pastiche and the most experimental track on 30, which incorporates phone voice notes of conversations about loss and safety between the newly single mom and son Angelo. The song is a mood tracker, but that lyric also serves as an admission of the challenge Adele faces as a white woman who, like nearly every white musician, remains hugely indebted to Black progenitors. Adele became one of the century's most beloved singers by cultivating a space beyond musical trends, grounded in a mobile retro-pop sound that borrowed equally from the soul-driven 1960s, the blockbuster 1980s and the timeless practice of untethering big ballads from any context whatsoever. She stood on this surface and, sharing tales of heartache, made it a sanctuary, but as long as she stayed there it could often feel like she was in musical dialogue with nothing and no one. 30, on the other hand, engages with the world — through lyrics that trade adolescent romanticism for genuine self-examination, arrangements that reflect the present moment, and a vocal presence as warm and multifaceted as Adele is in interviews and her onstage patter, where she's a pal who tells long stories and makes jokes, not a gravitational force. The third decade of the 21st century is not a time of big voices. It's tempting to view Adele as the last of something, but her genius is in confusing scale, in translating her grandeur into relatability. Adele may stand alone in the pop universe, but when you, the listener, are immersed in her music, she stands alone with you. This ability to connect as a feelingful person, to be a friendly planet, has always been as important as the sublimity of her voice. That gift hasn't faded; she can still animate a strictly emblematic chorus like, "Hold on, you are still strong, love will still come," with the lifeblood of spontaneity. Several elements merge to make this Adele's most musically interesting and conceptually rich work. The starting point is that better-trained voice, which at times sounds like an entirely new instrument.