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Joshua Barroll - Director, Jazz Band, Choir, Wind Ensemble, A Capella

Joshua Barroll - Choir, Wind Ensemble, A Capella


Joshua Barroll is a product of the Las Virgenes schools having attended Yerba Buena elementary, Lindero Canyon Middle, and Agoura High School, graduating in 1993.  He then continued his education at Boston University where he graduated with a dual degree in Music Education and Percussion Performance.  In the fall of 1997, he began his tenure as the Music Director at Calabasas High School.  The program has grown from less than 100 students to well over 300.  Mr. Barroll received his Master's in Music Education Degree from Northwestern University with an emphasis on choral studies in 2007.





Jazz Band, Guitar, Orchestra, Marching Band

Aaron Kohen - Jazz Band, Guitar, Orchestra, Marching Band


Aaron Kohen graduated from the University of Chicago with a degree in Geography and pursued his Masters of Music Education at the University of Southern California. He has taught music at the elementary, middle and high school levels in LAUSD and LVUSD for since 2000. Mr. Kohen studied violin, trumpet and finally bass in his youth, leading to a love of instrumental music. He has performed and recorded as a bassist with jazz groups, orchestras and rock bands, composed music for concerts, films and commercials, and taught bass privately for 15 years.






Michael Dabach

Michael Dabach – Marching Band, Guitar, Wind Ensemble, Music Appreciation

Michael Dabach was born and raised locally and is an alumni of Las Virgenes schools having attended Bay Laurel Elementary, A.E.Wright Middle, and Calabasas High School, graduating in 2007.  After high school Mr. Dabach continued his studies at the University of the Arts in Philadelphia, Pennsylvania and earned a Bachelors of Music in Trumpet Performance and a Masters in the Art of Teaching Music in 2012.  Mr. Dabach began his teaching career in LVUSD where he taught music for two years at both Chaparral and Sumac elementary schools.  Mr. Dabach then worked as the Music Director at Sinaloa Middle School in Simi Valley, California for two years prior to coming back to Las Virgenes.





Jazz Band, Piano, Theory

Jazz Band, Piano, Theory

Tod Cooper - After a long & diverse career in music, Tod counts his work on films such as The Lion King & Toy Story as his most important experiences, as they were great preparation for the cast of animated characters that parade through the CHS jazz program each year. Other credits include Music Production Supervisor for Nightmare Before Christmas, Pocahontas, Hunchback, Hercules, Mulan, Tarzan, The Producers. Broadway Pianist for Dreamgirls, Sophisticated Ladies, Marilyn. International Dubbing Producer for Dreamgirls, American Gangster, Children of Men, Mission: Impossible 3, Munich, War of the Worlds, School of Rock, E.T. 20th Anniversary Edition, Spirit, Shrek, El Dorado. Music Director for Phyllis Hyman, Cab Calloway, Dee Dee Bridgewater, Sarah Dash, Jane Olivor, Leslie Gore. Opening act tours with Herbie Hancock, Chic. Composer/Arranger for Lifestyles of the Rich & Famous, Fame, Fortune & Romance. Berklee College of Music graduate, 1978.





Piano Accompanist, Choirs

Piano Accompanist, Choirs

Robbie Gilman is the choir accompanist at CHS and frequently performs as the pianist for the school musicals. Robbie currently works as a musician, songwriter, arranger, musical director, and educator, and as an executive producer of film. Robbie has worked as a musician with such recording artists as Juice Newton, Nell Carter, 5th Dimension. He plays for various singers in town and has had songs recorded by Juice Newton, Jennifer Warnes, and Liza Minelli. He also co-wrote the music to TV's game show On The Cover and currently writes for Hilltop Records. Robbie has been the musical director for original stage productions of Dorian, and Lizard, where he won the NAACP Theatre Award for Best Musical Director, Educator. After studying at Grove School of Music, Robbie taught there for 12 years.






A CapellaA Capella

Alana Loewe Weiss is a sought after private singing teacher in the West Valley.  She has been teaching voice since 2004 and is the owner of Alana Voice Studio. An alumni of Calabasas High School, Alana received her Bachelor of Arts Degree from the University of California, Santa Barbara where she majored in Dramatic Art with an emphasis in Directing.  She was a founding member of UCSB's premiere pop/rock a cappella group, Naked Voices and, in 2001, Alana helped Joshua Barroll create Unstrumental and, later, Bare Rhythm.  She has been coaching the award winning a cappella groups ever since.  In addition to her work with the music department, Alana also works closely with the Calabasas High School theater program and has been the vocal director for several of the school's main stage productions including, most recently, the west coast premiere of Avenue Q, School Edition.  Alana is a member of the National Association of Teachers of Singing (NATS) and is certified as a nationally recognized enrichment teacher by the National Enrichment Teachers Association (NETA).





Alex Sill
Alex Sill – Jazz Assistant, Combo Director

Alex Sill has performed and/or studied with some of the world's top musicians including Steve Vai, Larry Koonse, Lyle Mays, Lee Ritenour, Charlie Haden, Sonny Emory, Melvin Lee Davis, Joe Labarbera, Darek Oles, and Vardan Ovsepian.

  Guitarist/Composer Alex has been playing music since age 12, and in 2015 received a Bachelor of Fine Arts Degree in the Jazz Program at California Institute of the Arts (Minor in Music Theory).

  Alex's band is one of the leading young jazz groups in Los Angeles, and features some of the cities best players (e.g. Varden Ovsepian, Otmaro Ruiz, Danny Janklow, Ben Shepherd, Gene Coye).  Alex has written music for a variety of different contexts including film/trailer music, jazz groups, rock bands, orchestra and a guitar trio. His piece "Montana Suite," written for three guitars, was performed and premiered during an opening set for Robben Ford. Montana Suite is part of an album of the same name, which is now available on iTunes, Amazon, and other major outlets for purchase.  For more info about Alex, click HERE.




Tyler Smith

Tyler Smith - Percussionist, 

Tyler Smith is a freelance percussionist, composer, and educator living in the Los Angeles area. Highlights include over 40 musical theater productions in the greater Los Angeles Area, performing the “Raise the Roof” timpani concerto with The Master’s College and Azusa Pacific University, and recording under Gordon Goodwin for Disneyland Paris. He has also had the privilege of teaching percussion at Moorpark High School, Oaks Christian School, Sierra Canyon, Village Christian School, and Lawrence Middle School. He has also created a junk percussion based summer camp and percussion ensemble, Junk Yard Rhythm. In addition to writing percussion literature, he is also involved in music technology - composing, arranging, and editing, most notably through his electronic music duo - Holy Buckets. He holds a Bachelors of Music degree from Azusa Pacific University, and a Masters of Music degree from California State University, Northridge.  Check out the following site for more info:  TylerSmith4Music.com.