The most recent performances by Susan Platts with the North Carolina Symphony were in 2023, as a soloist for the Mozart Requiem.

British-born Canadian mezzo-soprano Susan Platts has performed with, among others, The Philadelphia Orchestra, The Cleveland Orchestra, and the Minnesota Orchestra; Orchestre de Paris; the National Arts Centre Orchestra in Ottawa; the symphony orchestras of Montreal, Toronto, Detroit, Milwaukee, and Baltimore; the Handel and Haydn Society; and the Los Angeles and St. Paul chamber orchestras. As a Fellow of the Rolex Mentor and Protégé Arts Initiative, she had the opportunity to work closely with Jessye Norman.

Platts has appeared on art song series including Vocal Arts DC at The John F. Kennedy Center and the Art of the Song series in New York City. Recent opera highlights include Wagner’s Die Walküre with the London Philharmonic Orchestra, Mozart's Die Zauberflöte at the Royal Opera House, and John Adams' Nixon in China with the BBC Symphony Orchestra.

Platts’ discography includes Schmitt’s La Tragédie de Salomé, Mahler's Das Lied von der Erde (both the chamber version and the full version), Mahler's Lieder eines fahrenden Gesellen, Brahms Zwei Gesänge, and a solo disc of lieder by Robert Schumann, Clara Schumann, and Johannes Brahms. In 2021, she wrote the cookbook Aria Ready for Dessert?: A Musician Takes Center Stage in the Kitchen and started a food blog called Baking, Bits & Bobs.