Walsh has served on the music staffs of Opera Omaha, Utah Opera, Central City Opera, Wolf Trap Opera, San Diego Opera, Houston Grand Opera, and LA Opera, and has assisted renowned conductors Joseph Colaneri, James Conlon, Gustavo Dudamel, Jane Glover, Eun Sun Kim, Speranza Scappucci, Robert Spano, and Patrick Summers, amongst others. An active recitalist, Walsh has performed in Carnegie Hall under the auspices of the Marilyn Horne Legacy at Carnegie Hall. During the 2016 and 2017 summer seasons he enjoyed an association with the Ravinia Festival, collaborating with the singers of the Steans Music Institute. Walsh has enjoyed a long term collaboration with baritone Rod Gilfry and has performed with Gilfry and legendary mezzo-soprano Dolora Zajick at the Dorothy Chandler Pavilion. He has participated in the Music Academy of the West, the Aspen Music Festival, and the Fall Island Vocal Arts Seminar. As a soloist, Walsh was awarded first prize in the MTAC State Solo Competition and first alternate in the regionals of the MTNA Young Artists’ National Competition. He performed as a finalist in the Loeb/Louviere International Competition at the Wilshire Ebell of Los Angeles, and has performed as a soloist with the Los Angeles Chamber Orchestra. Walsh holds bachelor’s, master’s, and doctoral degrees in piano performance from the USC Thornton School of Music, where he studied with Lucinda Carver and Kevin Fitz-Gerald.