In 2021, Richardson released his debut portrait album, Borne by a Wind, on New Focus Recordings. The record’s cornerstone features Red Wind, a genre-spanning collaboration with poet Nathaniel Mackey and a mixed chamber ensemble of New York-based musicians, and three other chamber works performed by pianist Conrad Tao, violinist Lilit Hartunian, and the Da Capo Chamber Players.

Sid has participated in artist residencies at Crosstown Arts, The Hermitage Artist Retreat, Oberpfalzer Kunstlerhaus, the Virginia Center for the Creative Arts and their satellite campus at Moulin à Nef in Auvillar, France. He was an artist-in-residence at the Longy School of Music of Bard College from 2022-24. As a music educator, he has taught at MIT, Tufts University, and Wellesley College. He is currently a member of the composition faculty at New England Conservatory of Music.

Former faculty at Wellesley College, Tufts University, and MIT.