At this late date it's rare to encounter music that truly sounds like nothing else, but El Mal Querer pulled it off last year. The Catalonian singer Rosalía's second album was truly unique, alchemizing traditional flamenco with futuristic R&B in a manner that felt both natural and visionary. Palmas that hit like accented letters, agile nylon-stringed guitar runs, and a grandly weeping string section merged seamlessly with airy synth pads and booming minimal beats. A melody from Justin Timberlake's "Cry Me A River" became the foundation for an operatic ballad that seemed to never stop ascending. Swooning vocal theatrics straight out of ancient Andalusia morphed into lithe, breathy Auto-Tune runs.