Sydney’s Nina Wilson crafts shapeshifting, pop-driven dance music as Ninajirachi. Since debuting with a chopped vocal hook courtesy of Freya Staer on 2017’s DIY breakout “Pure Luck,” Wilson has devoted herself to pairing melodic immediacy with ever-shifting dynamics. Her 2018 single “Warm Fire Lightning (Flip),” featuring New York band Satellite Mode, was equal parts hiccuping and cozy, while 2020’s “Alight” put the focus squarely on her own intimate vocals and lyrics. The 2021 single “Dracodraco” again saw Wilson mingle high, chirping hooks with insistent rhythms, stark drops, and dreamy washes, before her 2022 mixtape Second Nature took her intricate handiwork to the next level. Observe the standout track “Petroleum,” with its floaty vocal mantra, vulnerable lyrics, and sudden flood of taffylike textures. She hasn’t stopped experimenting and evolving, adding extra oomph to the self-aware “girl EDM” and revisiting the early influence of Flume on “How Could U,” both from 2024. And on 2025’s “All I Am,” Wilson sings with simmering emotion before cranking up the tempo from slow burn to barn burner.