Guitarist/composer Mary Halvorson makes her Nonesuch debut with two albums, Amaryllis and Belladonna, out now. The two suites come in a two-LP vinyl set or as two separate CDs and digital albums, produced and mixed by John Dieterich. "These are new landmarks in Halvorson’s already inimitable discography," exclaims the Guardian in a five-star, Jazz Album of the Month review. Amaryllis is a six-song suite performed by a newly formed sextet of master improvisers; the Mivos string quartet joins for three of the songs, making this the largest ensemble for which Halvorson has written to date; you can watch a new video for the title track here. Belladonna is a set of five compositions written for Halvorson on guitar plus the Mivos Quartet, whose parts are through-composed and augmented by Halvorson’s guitar improvisations. They celebrate the albums’ release with performances of the two suites in Brooklyn, New Hampshire, and Quebec next week.