Nonesuch Records releases About Ghosts by Brooklyn-based guitarist, composer, and MacArthur fellow Mary Halvorson. The album, produced and mixed by Deerhoof’s John Dieterich, features eight new compositions by Halvorson, performed with her sextet Amaryllis, the improvisatory band that also was featured on her critically praised albums Amaryllis, Belladonna, and Cloudward. Amaryllis comprises Halvorson, Patricia Brennan (vibraphone), Nick Dunston (bass), Tomas Fujiwara (drums), Jacob Garchik (trombone), and Adam O’Farrill (trumpet). Saxophonists Immanuel Wilkins and Brian Settles join the ensemble on five tunes, including “Carved From,” which is available today. Halvorson’s last three records were named Jazz Album of the Year in DownBeat’s annual Critics Poll, where she was also named Guitarist of the Year in 2023 and 2024. Halvorson and Amaryllis will tour the US in September, with shows in Chicago, Lexington, Bloomington, Cambridge, Philadelphia, Brooklyn, and more; see below for details.