Showing a preference for little known repertoire, she has performed piano works by Franz Xaver Mozart (Wolfgang Amadeus's son), including the premiere of his Concerto in C, Opus 14 in London (followed by the Canadian premiere on Montreal television), and several transcriptions. A devoted champion of George Gershwin as well, she made a transcription for solo piano of An American in Paris, and gave the Beijing, China, premiere of Rhapsody in Blue. In a letter to Ira Gershwin, biographer Edward Jablonski wrote about her rendition of Rhapsody in Blue: 'Electrifying and spine-tingling! She plays George Gershwin with a glowing, sparkling authority and a twinkling humor that too many miss.'
In 1991, Julie Holtzman began performing as a jazz and cabaret singer-pianist. Her performances have included tribute concerts to the Duke Ellington Society in New York (2004-5) and engagements at jazz venues in that city. Holtzman specializes in teaching classical piano to jazz pianists. As of 2005, she was living in New York City.
Author Jean-Pascal Vachon, Betty Nygaard King
Papineau-Couture - Blackburn - Morawetz - Champagne - A. Brott - Gershwin. 1974. RCI 397 (Papineau-Couture) 6-ACM 4, (Champagne) 4-ACM 30, (Brott) 7-ACM 20
F.X. Mozart Quatre Polonaises, Opus 22, Concerto in C, Opus 14. McGill Chamber Orchestra, A. Brott conductor. (1975). RCI 407
Holtzman, Julie. "Master class: F.X. Mozart's Polonaise, Op. 22 No. 2," Keyboard Classics, vol. 6 no. 3, 1985
"Julie Holtzman," Entr'acte, Spring 1991