I am a composer / guitarist, originally from Los Angeles and have worked for the past 30 years in film, television, sound recordings, video games, advertising, and internet media. I also perform regularly with various artists in the Southern California area. For more information, you can visit my website at markatomusic.com or markchosak.com.

As a composer / arranger / orchestrator, I compose original music for film and television underscore and games; as well as work with artists to arrange and produce existing music. As a guitarist, I work both in the studio and live and have performed with some of the best musical talent in Los Angeles and San Diego. In addition, I provide other services such as dialogue recording and editing, sound design and editing, music editing, and music production. I compose and play all styles of music and would be happy to discuss your specific project with you.

Would love to hear from you. Click the contact button above to get in touch.

My credits include

Gear highlights

  • Guitars: Fender Strat
  • Tele
  • Gibson 335
  • 175
  • Nylon
  • Steel-string
  • Roland VG-88; Amps: Mesa
  • Polytone
  • Fishman; various effects; Software: Cubase
  • ProTools
  • huge instrument library
  • effects and mastering plug-ins.

Genres I specialize in

Terms of Service

As a guitarist, I bill straight time - per hour. As a composer / arranger, I bill either per hour or per project. The number of revisions included depends upon package fee agreed to with my client.

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