Montelione regularly performs at the Walt Disney World Resort. He has performed with the American Pops Orchestra, Sarasota Orchestra, Florida Orchestra, Opera Tampa, Orlando Philharmonic, Jacksonville Symphony, Coastal Symphony of Georgia, Ocala Symphony, Opera Memphis, Memphis Symphony, Alabama Symphony, Moscow State Radio Symphony, Bayreuth Festival Orchestra, Erie Symphony, Washington Symphony Orchestra, Jackson Symphony, the Irish Tenors, Cirque Musica Orchestra, with the United Nations Orchestra at Carnegie Hall and many others.  

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As a commercial artist he has worked with Billy Joel, Tony Bennett, Patti LaBelle, Charlie Daniels, Amy Grant, Don Menza, Bob Mintzer, Ruben Studdard, Mandisa, Kim Choo-ja, Julie Andrews, Nathan Lane, Lou Diamond Phillips, Ian Fraser, Ed Strauss, Laura Bell Bundy, Lea Michelle, Bart Shatto, Steve Tewksbury, Eden Espinosa, The Little River Band and many others. Montelione can be heard on major-motion picture soundtracks to “Post Grad”, “Live Evil”, “Unearthed” ,"U-Street Sounds", and the video game “Metropolis.”

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As a theatre musician, he has been seen in the Broadway pits for the shows “A Funny Thing Happened On The Way To The Forum” starring Nathan Lane, “Victor/Victoria” starring Julie Andrews, “The King and I” starring Lou Diamond Phillips, “Big: The Musical” a musical adaptation of the 1988 Tom Hanks film, and numerous national tours. He is the creator of  “Concert with Words”, a concert experience that blends instrumental music and spoken word.

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Montelione is a teaching artist providing masterclasses and performances throughout the United States.  He has performed all over the world as a chamber musician and soloist, with engagements throughout North America, Europe, and Asia. He has been on the faculty of the University of Florida, Rhodes College, and Florida Tech University. He enjoyed his time as a member of the artist faculty for the National Trumpet Competition, a teaching-artist for the Los Angeles Philharmonic, a performing artist-educator for Blue Lake Fine Arts Camp and the New England Music Camp.

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Montelione is proud to be a Larson Brasswerks Artist. His formal education began at the Manhattan School of Music, and concluded at the University of Southern California.  Previous teachers have included: Carl Sakofsky, Robert Sullivan, William Vacchiano, Dennis Edelbrock and Boyde Hood.  Previous jazz teachers have included: Earl Carter, Dave Arnay, Jim Carroll and every album he ever heard.