Janel Leppin is one of the hardest-working musicians in D.C. Though primarily known as half of the experimental duo Janel and Anthony, with her partner Anthony Pirog, Leppin’s stunning talents have made her one of the most sought-after musicians in town by artists far and wide (she frequently tours with singer-songwriter Marissa Nadler). She’s led her own bands before—like her jazz quintet Ensemble Volcanic Ash—but Mellow Diamond is the first project that’s entirely her own. On its gorgeous, dense debut record, which comes out this week on Leppin’s own Wedderburn Records, Leppin emerges as a solo artist in every sense of the term: She played every instrument. That’s not unusual for a solo artist, but damn impressive when you listen to Mellow Diamond and discover the various instrumentation—layers of guitars, cello, organ, harpsichord, vocal melodies, and much more—Leppin used to create such ethereal sounds. Though Leppin is something of a musical chameleon—fluent in jazz, surf, experimental, and classical—Mellow Diamond takes cues from the avant-pop of Björk and Portishead, with self-described influence from “Ai Wei Wei’s art, Sufi poetry, the hardcore D.C. punk, and noise-music scenes that reared her.” Mellow Diamond performs with Pree and Roz and the Rice Cakes at 7:30 p.m. at Songbyrd Music House and Record Cafe, 2477 18th St. NW. $9.99–$12. (202) 450-2917. songbyrddc.com.