One of the country’s leading professional vocal ensembles, The Clarion Choir has performed on some of the great stages of North America and Europe. In 2023, the Choir has performed and recorded Rachmaninoff's large-scale choral works in celebration of the composer's 150th birthday. The Choir performed Rachmaninoff's All-Night Vigil ('Vespers') at Carnegie Hall last May. And their recently-released recording of the work has been nominated for a GRAMMY® for Best Choral Performance. In 2019 and 2023, the Choir joined The English Concert and Harry Bicket for their annual Handel tour, performing in venues such as the Auditorio Nacional de Música in Madrid, the Barbican in London, Cal Performances in Berkeley, Théatre des Champs Elysée in Paris, LA Opera and Carnegie Hall, in performances of Handel's Semele and Solomon.

The Clarion Choir was initially formed in 2006 and made their Lincoln Center debut in 2011, performing Bach Chorales as part of the White Light Festival with organist Paul Jacobs. In 2014, the choir gave the New York premiere of a lost Russian masterwork from the 1920s, Passion Week by Maximilian Steinberg. In October of 2016, Clarion premiered the work in Moscow, St. Petersburg, and London. Their performance was featured on PBS, and their recording of it, the Choir's debut recording, received nominations for a GRAMMY® and for BBC Music Magazine's Choral Award. The choir has since performed and recorded other works from this period, such as Kastalsky's Memory Eternal, which debuted at #1 on the Billboard Classical charts, and Kastalsky's Requiem, which received 'Editor's Choice' in Gramophone.

The Clarion Choir has performed regularly in recent years as part of the Live Arts series at the Metropolitan Museum of Art; including presentations of large-scale Renaissance works by Victoria, Palestrina, Tavener, Josquin, and Guerrero in the Medieval Sculpture Hall and the Met Cloisters. The Choir has collaborated in recent years with The Knights and Eric Jacobsen, Susan Graham, Anthony Roth Costanzo, Isabel Leonard, the Orchestra of St. Luke's, Leonard Slatkin, and Madonna at the 2018 Met Gala.