Jacob Cornejo

Photo_CornejoJacobJacob Cornejo
Cymbal Instructor

JACOB CORNJEO performed with Pacific Crest Drum and Bugle Corps in 2009 and 2010. In addition, Jacob performed with the RCC Winter Percussion for the 2011 and 2013 seasons, from whom he drew inspiration from Sean Vega, Jared Andrews, Dan Wahl,  Jenny Jackson, Fernando Miller, Jeremy Somers, and Matt Regua.

He has started to share  his knowledge as an instructor at Troy High School in Fullerton, CA, and returned to Pacific Crest as a cymbal instructor in 2012.

Jacob is currently pursuing his studies in mathematics at Fullerton College.




Matt Walters

Photo_WaltersMattMatt Walters
Bass Drum Instructor

MATT WALTERS teaches the percussion sections at Rowland High School and the Riverside College Marching Band, serving as their bass drum instructors. He has taught at Pacific Crest since 2012.

Matt’s performance experience includes Mystikal Drum and Bugle Corps (2004-2007), Black Knights (2006-2007), Blue Devils (2008-2010), and RCC Winter Percussion Ensemble (2008-2011).

He is a resident of Ontario, California.



Melannie Stakely

Photo_StakelyMelannieMelannie Stakely
Bass Drum Instructor

MELANNIE STAKELY performed with Mystical Drum and Bugle Corps, Blue Devils Drum and Bugle Corps, Black Knights Indoor Percussion and Pulse Percussion.

Her teaching experiences include Gold Drum and Bugle Corps, Impulse Drum and Bugle Corps, Mandarins Drum and Bugle Corps, Pulse’s POW Percussion, and Pacific Crest.

Melannie is a graduate of California State University, Los Angeles, where she earned her Bachelor of Arts in Child Development with an emphasis in Elementary Subject Matter. She lives in Montclair, California.


Darren VanDerpoel

Photo_VanderpoelDarren VanDerpoel
Snare Instructor

DARREN VANDERPOEL performed with Pacific Crest in 2007 and 2008. He returned as an instructor in 2012. Other performance experiences include Esperanza Drum and Bugle Corps, Black Knights Indoor Percussion, Riverside Community College Marching Band, and RCC Indoor.

Darren earned a Bachelor’s Degree in Marketing Management from Cal Poly Pomona, and is a director and performing member of the Los Angeles Clipper’s Drumline “Clippercussion.” He is an active percussion instructor in Southern California, and currently teaches at Ayala, Diamond Bar, El Dorado and Nogales High School. 

Pat Aldrich

Photo_AldrichPatPat Aldrich
Visual Instructor

PAT ALDRICH performed with Pacific Crest from 2005 through 2009, making one of the corps’ longest-serving member. He rejoined Pacific Crest as a visual instructor in 2013.

Pat has taught the visual program at a number of Southern California high schools. His current programs include Rowland, Esperanza, and Chino Hills.

Outside of the marching arts, Pat is an avid cyclist and a huge fan of hockey.

Dalia Berman

Photo_BermanDaliaDalia Berman
Front Ensemble Manager

DALIA BERMAN, a percussionist in the Los Angeles area, graduated with her bachelors degree in performance from California State University, Northridge where she studied under John Magnussen, Aaron Smith and John Roscigno. She recently received her masters in world percussion from California Institute of the Arts studying under Randy Gloss, David Johnson, Houman Pourmehdi, Amy Knoles, Aaron Serfaty and Swapan Chaudhuri.

Along with her classical training, Dalia has been heavily involved in the marching activity. She has been a member of Pulse Percussion, Phantom Regiment, The Academy, Mandarins, Velvet Knights and Full Force Percussion.

As an educator, Dalia has held positions at numerous programs around Southern California including currently Hart High School, Colony High School, Etiwanda High School, Arroyo High School and Dark Sky Percussion. She started teaching at Pacific Crest in 2014.