Kelly was the winner of the 2022 UNSW Concerto Competition, making her concerto debut as the soloist in Chopin’s Piano Concerto No. 1 in E minor under the baton of Steven Hillinger with the UNSW Symphony Orchestra at the Sir John Clancy Auditorium. Hailed as "One of the greatest piano concertos ever," the work has long been a cornerstone of the concert pianist's repertoire. Kelly’s performance was highly anticipated and praised for its virtuosity, rich colours, and sensitivity. Her interviews with the Music Performance Department and CutCommon Magazine were published in the same year.

In 2024, Kelly performed George Gershwin’s Rhapsody in Blue with the Sydney Youth Orchestra, conducted by Steve Williams, at the White Bay Power Station. The concert drew over 1,000 attendees and received widespread acclaim for Kelly’s dynamic and captivating performance. Additionally, she had the privilege of working with the principal conductor of the Berlin Philharmonic.

As a dedicated chamber musician, Kelly has performed a diverse range of repertoire, including César Franck's Cello Sonata in A Major, Brahms' Violin Sonata No. 2, Beethoven's Spring Sonata, and Mendelssohn's Cello Sonata No. 2. She has appeared at several of Sydney’s most historic venues, collaborating with some of the city’s finest chamber musicians. In 2022, she was invited as a guest artist to perform Respighi’s Pines of Rome with the North Sydney Symphony Orchestra at Verbrugghen Hall. She has recently performed Stravinsky ‘s Petrushka with the Sydney Conservatorium of Music Orchestra.

Kelly is currently expanding her solo repertoire with works by Liszt and Shostakovich, further showcasing her versatility and artistry.