2024 Guest Artist: Jennifer Wharton

JENNIFER WHARTON is a low brass specialist based in New York City. Though getting her start classically, Jen has deep roots in jazz, commercial, chamber and Broadway music.

Jennifer leads the trombone-forward ensemble, Bonegasm, commissioning works from jazz heavyweights and newcomers. She was awarded a 2020 grant by the NYC Women’s Fund for Media, Music and Theater to continue to bring trombone music to the masses. The result was Bonegasm’s sophomore album, Not A Novelty (2021), a follow up to their debut Bonegasm (2019). Downbeat Magazine called the most recent album “Trombone Ecstasy”.

Jen is currently performing in Sweeney Todd on Broadway and has held positions on at West Side Story, King Kong, Beautiful, The Gershwin’s Porgy and Bess, Jekyll and Hyde, Scandalous, Wonderland, 9 to 5 and Curtains, as well as performing as a substitute in many other Broadway productions. She has won the Radio City Christmas Spectacular bass trombone chair five times.

In addition to being an in-demand freelancer, Jennifer is an active studio musician. She can be heard streaming on shows like Mrs. Maisel, Schmigadoon, Vivo, and Jerry Seinfeld at The Beacon. Commercials include Booking.com, The Incredibles 2, The Greatest Showman and more. She has also been on over 40 big band recordings since 2009.

She is a member of three Grammy-nominated ensembles, Darcy James Argue’s Secret Society, Alan Ferber Big Band and the Terraza Big Band. Jen also plays in the Generation Gap Jazz Orchestra which won the 2023 Grammy for Best Large Jazz Ensemble. She has performed on the Grammy-nominated cast albums for The Gershwins’ Porgy & Bess, 9 to 5 The Musical and Curtains The Musical as well as the Grammy-winning recording of Beautiful – The Carole King Musical.

Jen has performed, toured and/or recorded with groups including the Vanguard Jazz Orchestra, Dizzy Gillespie All Star Band, Ken Peplowski Big Band, Miggy Augmented Jazz Orchestra, DIVA Jazz Orchestra, Arturo O’Farrill’s Afro-Latin Jazz Orchestra, Birdland Big Band, Ayn Inserto Jazz Orchestra, Woody Herman Orchestra, John Yao and His 17 Piece Instrument, Generation Gap Big Band, Walking Distance, South Florida Jazz Orchestra, New Alchemy Jazz Orchestra, Steven Feifke Big Band, and the BMI Jazz Composers’ Workshop.

Jennifer is an XO Professional Brass artist and plays their 1240-LT bass trombone. She teaches bass trombone at Rutgers University and Montclair State University in New Jersey and gives clinics and masterclasses regularly throughout the United States.

2024 Artist: Richard Harris


Whether its performing on OSCAR wining soundtracks such as “Joker,” the GRAMMY award winning album “Twelve Little Spells” with Esperanza Spalding, or recording solo and chamber music CD’s, Richard Harris has crafted an eclectic musical career. As a soloist, chamber musician, orchestral performer, educator and advocate, his performances have taken him all across North & South America, Europe and Asia.

Richard is currently on faculty at the University of Denver, is the former Assistant Principal Trombone of the Cincinnati Symphony Orchestra, and formerly an Associate member of the Metropolitan Opera Orchestra. He is a regular guest with many of the US’s top symphony orchestras, including the Seattle Symphony, Boston Symphony, Colorado Symphony, Buffalo Philharmonic and is a former member of the Radio City Music Hall Orchestra in New York City, where he has also performed with many other Broadway productions.

Richard recorded with pop-star Sting on his first studio album in a decade and has performed and toured alongside a diverse range of musicians, such as, Rza, Puff Daddy, Snoop Dogg, Vince Mendoza, Natalie Cole, Seth McFarlane, Boyz II Men, Megan Hilty, Roseanne Cash, Bryce Dessner, Chris Botti and classical music stars Luciano Pavarotti and Andrea Bocelli.

Mr. Harris is a member of ‘Decoda’ a New York City based chamber music collective which is the first ever Affiliate Ensemble of Carnegie Hall and he is also a member of Summit Brass. As a chamber musician he has been a guest artist at Chamber Music North West and has performed with The Canadian Brass, The Empire Brass, The Metropolitan Opera Brass Ensemble, The Lincoln Center Trombone Ensemble, the Boston based string ensemble, A Far Cry and he appeared on onstage at the Park Armoury in New York with the Knights Chamber Orchestra in “The Head & The Load” directed by William Kentridge.

A native of Worcestershire, England, Richard was a scholarship student at the Royal Academy of Music in London. He completed his Masters Degree at Indiana University before spending three seasons with the New World Symphony Orchestra led by Artistic Director Michael Tilson Thomas. Mr. Harris is a former fellow of Ensemble ACJW, a program of Carnegie Hall & The Juilliard School and Richard has worked for Carnegie Hall as a teaching artist.

During the summers Mr. Harris teaches at the Raphael Mendez Brass Institute and he is also on faculty at the Idyllwild Summer Arts Academy in California where he coaches high school students in chamber music and orchestral literature. In the mountains of Santa Fe New Mexico Mr. Harris hosts “RichardTromboneCamp!” An annual multi day retreat for brass players to explore and deepen their understanding and knowledge of brass performance.

Richard presents multiple classes and is joined by other leading brass artists throughout the seminar.

Richard is strong believer that the arts can be a powerful agent for social change, and he currently serves on the board of “Musicambia” a New York based non-profit which teaches classical music in prisons and jails across the US. He is also the co-ordinator for Decoda’s workshop activities at Administration for Children’s Services, New York City’s child welfare and preventative services department. He is the co-founder and former Executive Director of the Miami Music Project a non-project music education program in Miami Florida. Under Richard’s leadership the Miami Music Project raised over $1.5 million in 1 year from it’s inception and bought chamber music to thousands of Miami-Dade County public school students.

Richard lives in Colorado with his wife, their two sons and their English Bulldog ‘Churchill.

2022 Schedule

Welcome to Trombone Day!  Here’s what’s happening!

Please note: Mt San Antonio College currently requires masking on campus.  Musicians are required to use bell covers and masks in rehearsals; Masks can be removed during performances. 

For more information about COVID protocols on campus: https://www.mtsac.edu/covid19/


High School: Group Warm-up with Dr. Karen Marston, Feddersen Recital Hall
Adult/College: Group Warm-up with Bob Sanders, TENT (in parking lot)


Trombone Check opens in room M119
High School
: Reading Session with Dr. Lori Stuntz, Feddersen Recital Hall
Adult/College: Visit the exhibits in room M108


High School: Visit the exhibits in room M108
Adult/College: Trombone Choir Reading Session with Bob Sanders, TENT (in parking lot)


Opening Concert, Intercollegiate Choir


Free time/Exhibits/Break/Lunch


High School Quartet Competition, Feddersen Recital Hall
Judges: Dr. Karen Marston, Shelly Suminski, Dr Lori Stuntz, Bob Sanders


Open rehearsal with Alex Iles and Bones West, Feddersen Recital Hall


Artist Master Class, Alex Iles, Feddersen Recital Hall


Guest Recital, Empress Trombone Quartet Recital, Feddersen Recital Hall


Artist Recital, Alex Iles Artist Recital, Feddersen Recital Hall


Finale Concert, Bones West, featuring Alex Iles, Feddersen Recital Hall (Quartet Winners will be announced prior to concert)

See you on April 23!




2022 Featured Ensemble: Empress Trombone Quartet

SoCal Trombone Day is excited to announce a featured concert for 2002: Empress Trombone Quartet!

The Empress Trombone Quartet performs multi-style concerts for diverse audiences. With repertoire ranging from Medieval plainchant to swashbuckling movie scores, Empress concerts have something for every kind of music-lover, and as a female-centered trombone quartet, Empress is about breaking ground, and smashing stereotypes. Founded by Karen Marston in 2019, the Empress Trombone Quartet calls on the diverse musical backgrounds of its players, which range from orchestral and chamber music, to commercial and studio playing, to push the boundaries of chamber music.

Empress is also committed to new music, and has commissioned two brand new works for trombone quartet: The Lady of the Lake, by LA composer Stephen Mahpar, and Lotus Flowers, by Fátima Abramo Acuña, trombonist of the Orquesta Sinfónica del Congreso Nacional del Paraguay, which will be premiered in 2022.

Empress Trombone Quartet is:

Amy Bowers

Shelly Suminski
Lori Stuntz
Karen Marston

What will the Empress Trombone Quartet do at SoCal Trombone Day?

Empress will perform a recital program and serve as judges for the High School Trombone Quartet competition.

See you on April 23!


2020 Guest Artist: Peter Steiner

SoCal Trombone Day is excited to announce our 2020 Guest Artist:

Peter Steiner 

with Constanze Hochwartner, Piano

Italian trombonist Peter Steiner’s playing has been described as “beautifully controlled with a vocal sound” and he is recognized around the world as “a new trombone star within his generation”, “playing with total control”. In 2019 he was awarded Prize Winner of the XVI International Tchaikovsky Competition in Russia.

At the age of 23, Peter Steiner was appointed Trombonist of the Vienna State Opera and Vienna Philharmonic for the 2016-2017 season. Prior to that engagement he served as Principal Trombonist with the Colorado Symphony for the 2014-2015 season. He has performed as guest trombonist with the Munich Philharmonic, Staatskapelle Dresden, New York Philharmonic, Dallas Symphony Orchestra, Seattle Symphony Orchestra and BBC Scottish Symphony Orchestra.

His 2018-2019 season involves extensive international travel and features over 100 performances, including a 3-month World Tour of the United States, Europe, Asia and South America with Constanze Hochwartner (piano/organ) as Duo Steiner-Hochwartner, as well as solo concerts with orchestras around the globe. Other highlights for this season include a CD release tour throughout Europe, Asia, Australia and the United States in July 2019, and solo appearances at the Lille (France) Trombone Festival and International Trombone Festival (Indiana, USA).

See you Feb., 1, 2020!

Special Guest: Dick Nash

We are honored to welcome the great Dick Nash as a special guest for Trombone Day 2019!  

Amassing a whopping 3200 television and movie score credits in his long career, LA trombone great Dick Nash worked with all of the Hollywood heavy-hitters, including Henry Mancini, Jerry Goldsmith, and John Williams, and can be heard on many iconic recordings, such as Peter Gunn, Breakfast at Tiffany’s, Days of Wine and Roses, Sabrina, and Planet of the Apes, to name a few.  Dick will be joining Bones West and Marshall Gilkes on the finale concert at Trombone Day!  Don’t miss this incredibly special opportunity to hear a legend of the LA Studio Scene!

2019 Artist: Marshall Gilkes

The SoCal Trombone Day team is excited to announce our 2019 guest artist, Marshall Gilkes!

New York based trombonist Marshall Gilkes is a multi-style virtuoso whose energetic playing and technical brilliance set him apart on the world stage.  Educated at the Juilliard School, Marshall has been active internationally for two decades, and has performed with such jazz greats as Wynton Marsalis, Randy Brecker, Maria Schneider, and Edmar Castañeda.  His skills as both a composer and a soloist can be heard on the 2015 release, Koln, from the WDR Big Band, and he is in high demand as both a performer and a clinician at jazz festivals and schools around the world.  In addition to his work with WDR, Gilkes has three solo releases: Sound Story, Lost Words, and Edenderry, all of which are available on his website, at: https://www.marshallgilkes.com/albums.html.

For a taste of Marshall’s playing and writing chops, check out the track below!

Marshall will be performing and teaching throughout the say at SoCal Trombone Day, on Saturday, March 02, 2019!  We’ll post more information in the coming months, but in the meantime, save the date!

See you March 2!