About John

New York based woodwind doubler John De Simini was born in Toronto, Ontario.  With formal training in piano, starting at the age of 6, John’s love of music grew when he was enrolled at St. Michael’s College School and was given saxophone as his major instrument of study.  Upon completion of high school studies, John enrolled in Toronto’s prestigious Humber College music program where he earned a degree with honors in Jazz and Contemporary music.  While at Humber, John had the privilege of studying with Pat LaBarbera, Don Thompson, Mark Promane, Al Kay, Brian O’Kane, and Jim McGrath and was the recipient of numerous awards from St. John’s Music, The Humber College Scholarship Fund, Jazz FM 91.1, and Yamaha Music Canada.

As a freelance musician, John has had the pleasure to perform with Diana Krall, Rufus Wainwright, Josh Groban, Boy George, David Byrne, The Labarbera Brothers, Hugh Jackman, The Humber College Faculty Alumni Big Band, the Don Thompson/Reg Schwager Nonet, Hilario Duran’s Latin Big Band, The Don Thompson Big Band.  

John has performed throughout Canada, the Caribbean, and the United States.  Favorites have included performances at the TD Canada Trust Toronto Jazz Festival, TD Canada Trust Ottawa Jazz Festival, and tours of British Columbia and the Bahamas.


In 2007, John began his teaching career teaching at various music schools throughout the Greater Toronto Area including private instruction at St. Michael’s College School.  John also took part in Humber College’s Jazz in the School’s initiative for two years.


John is also an active woodwind doubler in the musical theatre community. Favorite shows include the Toronto production of COMPANY (Theatre 20);

A BRONX TALE (Dodger Theatrical/Papermill Playhouse) The National Tour of JERSEY BOYS as well as substitute work with the RADIO CITY SPRING SPECTACULAR, and the Broadway productions of JERSEY BOYS, ON YOUR FEET, BEAUTIFUL, MOULIN ROUGE, AIN'T TOO PROUD, TINA:The Tina Turner Musical and MEAN GIRLS.


Musical direction and conducting credits include FOOTLOOSE, URINETOWN, as well as the Canadian Premiere of BARE: A ROCK OPERA at Toronto’s Hart House Theatre.


John can be reached using the form on the 'contact' page. John is a Cannonball Saxophone Artist.




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