Halvorson began her musical education on violin but was enthralled with the idea of playing guitar after discovering Jimi Hendrix. She first picked up electric guitar at the age of 11 in seventh grade. Her first guitar teacher was Issi Rozen. She initially enrolled in Wesleyan University to study biology, but dropped her prospective major after sitting in on one of saxophonist Anthony Braxton's music classes. She quickly connected with him and he heavily encouraged her to find her own expression on guitar.
Later life and career
Halvorson's 2008 recording Dragon's Head was as the leader of a trio containing bassist John Hébert and drummer Ches Smith. Her later album, Saturn Sings, added saxophonist Jon Irabagon and trumpeter Jonathan Finlayson. In 2012, she played with trumpeter Peter Evans and drummer Weasel Walter on the trio album Mechanical Malfunction. In 2013, the trio of Halvorson, bassist Michael Formanek, and drummer Tomas Fujiwara recorded the first of several albums as the band Thumbscrew. NPR called Halvorson's 2015 solo albumMeltframe "category-exploding", and its 2015 Jazz Critics Poll named the record 7th-best of the year. Her album Away With You features pedal steel player Susan Alcorn, cellist Tomeka Reid and saxophonist Ingrid Laubrock. The albumCode Girl was Halvorson's first attempt at writing lyrics for her original works, which are sung by Amirtha Kidambi and inspired by the songwriting of Robert Wyatt and Elliot Smith. The album also features drummer Tomas Fujiwara, bassist Michael Formanek and trumpeter Ambrose Akinmusire. The album received an 8.1 rating from a Pitchfork review, explaining, "The pleasure of this kind of text comes from the way it invites active listening as a means of interpretation." Code Girl is named after an offhand remark by Braxton, who used the phrase in conversation while on a European tour with Halvorson. Later, she settled on the phrase as an album title, because "at that point I'd written a lot of the lyrics... and they seemed a little bit coded and strange." Halvorson has also worked with John Dieterich of Deerhoof. Halvorson had previously performed some of her lyrics in collaboration with violinist Jessica Pavone, with whom she also recorded duo albums. As of 2018, Halvorson was an instructor at The New School's College of Performing Arts. Halvorson won Best Guitar in DownBeat's International Critics Poll between 2017 and 2019. In 2019, she was awarded a MacArthur "Genius" Grant for music.
Musical style
Although Halvorson is often categorized as a jazz guitarist, her music includes elements of many other genres, such as flamenco, rock, noise, and psychedelia. In a 2018 interview with Jazz Times, Halvorson described the guitar as a "neutral vessel", saying “The cool thing about the guitar is it’s not associated as much with a particular genre... it could be classical, it could be rock and roll, it could be jazz, it could be folk.” In 2012, Troy Collins of All About Jazz called Halvorson "the most impressive guitarist of her generation", and wrote, "The future of jazz guitar starts here." Jon Garelick of The Phoenix identified Halvorson's search for her own sound as a key component of her success as a musician and composer.