SoCal Trombone Day, Saturday, March 02, 2019

High School 1: Freshmen/Sophomores
High School 2: Juniors/Seniors
  High School 1 High School 2 College & Adults Educators
8:00am Registration opens (Pre-registered?  Pick up your wristband at the Box Office)
9:00am Group Warmup with Dr. Karen Marston (M108) Group Warmup with Michael Hoffman (M200) Group Warmup with Bob Sanders (Feddersen) Observe a group warmup
9:45am Opening Concert, Featuring combined collegiate trombone choirs from Cal State Fullerton, Mt SAC, Cal State Long Beach, and Cal Poly Pamona, Dr. Karen Marston, Dr. Lori Stuntz, and Michael Hoffman, Directors (Clarke)
10:45am Exhibit Hall Artist Masterclass: Marshall Gilkes (Feddersen) Trombone Choir Reading Session with Bob Sanders (M200) “Concert Programming for Artistry,” with Dr. Gregory Whitmore (M104)
11:45am Artist Masterclass: Marshall Gilkes (Feddersen) Trombone Choir Reading Session with Dr. Karen Marston (M200) Exhibit Hall Exhibit Hall
12:30pm Lunch at the Mountie Cafe (right up the hill)!
1:30pm Free Choice:

High School Quartet Competition (Feddersen)

Exhibit Hall

2:30m Trombone Choir Reading Session with Michael Hoffman (M200) Exhibit Hall Artist Masterclass: Marshall Gilkes (Feddersen) “Rethinking Brass Teaching,” with Dr. Karen Marston (M104)
3:30pm Free Choice:

Masterclass, Dr. Andrew Glendenning (M200)

Trombone Maintenance, John Sandhagen (Feddersen)

Exhibit Hall

4:45pm Artist Recital, Marshall Gilkes and Mt SAC Faculty Jazz (Clarke)
5:30pm High School Trombone Quartet Competition, Winners Announced/Performance
5:45pm Bones West Concert, featuring Marshall Gilkes and Dick Nash
6:30pm Door prize drawing (all attendees eligible)

 NOTE: Trombone cases are not allowed in Feddersen or Clarke during performances.  Trombone Check (M119, in Feddersen Courtyard) will be available before and after concerts.

Who should attend Trombone Day?

Everyone!  SoCal Trombone Day is the largest trombone gathering in the region, and is a full day of all things trombone, aimed at students, teachers, enhtusaists, professionals, and hobbyists alike!  Get ready for some serious inspiration, with a full day of concerts, master classes, exhibits, and reading sessions!  Questions?  Please email Dr. Karen Marston, Mount San Antonio College, at

New for this year!

GROUPS: Attendees will be split into smaller groups (based on age), so that classes and reading sessions are both age-approproate, and more manageable in terms of groups size.  Plus, exhibit time will be built into your schedule!  No need to miss a fun concert or class in order to try out horns!

EDUCATOR TRACK: Teachers!  Want to bring your students to Trombone Day, AND get something out of it for yourself?  New for this year, we will offer an educator track – clinicians and classes just for you!  Looking for professional development opportunities?  Trombone Day has you covered!  Plus, bring a group of students, and get in for FREE!  Please email Dr. Karen Marston, at, for more information!


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:

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!