Orchestra Santa Monica (OSM) was founded in 2012 by Dr. Allen Robert Gross (*) who served as the orchestra’s Music Director for six years. After his retirement in May 2018, Roger Kalia was selected as OSM’s new Music Director.

about Roger Kalia


To build a strong community of classical music lovers of all ages and make a positive impact on the quality of people’s lives. OSM creates and shares life-enriching experiences through accessible, educational, and inspirational live concert performances.

OSM at the Eli & Edythe Broad Stage

Orchestra Concerts

OSM performs its orchestra concerts in a variety of venues, primarily in Santa Monica. These include the Eli & Edythe Broad Stage, Adams Performing Arts Center, Barnum Hall, Calvary Baptist Church, and First Presbyterian Church.

OSM has always provided many complimentary and discounted tickets to help make our concerts accessible to the community. Starting in Fall 2022, OSM has made its concerts free to all, bringing its music to the widest audiences possible.


OSM keeps its musical programming interesting, presenting standard classical repertoire, less-traditional works, various genres of music (e.g., Broadway, jazz, and bluegrass inspired styles) and new, exciting works by living composers. Depending on the repertoire being performed, the number of musicians typically ranges anywhere from 50 to 70 players for our orchestra concerts.

The orchestra is also available for hire by presenting organizations. For example, OSM recently performed in the Redlands Bowl Summer Music Festival.

meet some of our OSM Musicians

Music Outreach

In addition to our orchestra concerts, smaller OSM ensemble performances take place in various locations throughout Santa Monica and the Los Angeles area. To learn about more about our outreach activities, please see

OSM Outreach

Bringing music to the community