Jonathan maintains a busy performance schedule as a highly sought after musician in Los Angeles. Along with frequent gigs and recording sessions, he plays regularly with bands led by Mike Barone, Vincent Gallo, Bennie Maupin, Vinny Golia, and Dan Rosenboom. Jonathan also founded the critically acclaimed modern jazz quartet Slumgum and the cutting edge electronic psychedelic group Pitch Like Masses. He has performed with these projects throughout the United States, Europe, and Japan.
As a composer, Jonathan has written music for film and theatre. In 2012 he composed and conducted an original score for a nine-piece chamber group in the ground-breaking theatre piece “Homo Economicus”. In addition, his original contemporary classical pieces are premiered frequently around Los Angeles. These pieces represent a wide variety of ensembles from solo piano to a 20 piece large ensemble that features elements of improvised conduction and a spoken word artist.
In 2013, Jonathan formed the Jon Armstrong Jazz Orchestra, a 22 piece modern big band that is dedicated to realizing his daring long form compositions. These compositions are the culmination of Jonathan’s career incorporating sophisticated structures of modern classical music, complex rhythms and forms of world music and expressive jazz improvisation. The large ensemble has performed to enthusiastic capacity crowds and recently recorded the debut album.
Jonathan's passion for reaching out to the community and educating young minds in the ways of music has led him to design and teach multiple improvisation and listening based curriculums that he's employed throughout Los Angeles. He currently teaches private lessons as well as jazz ensembles for Heart of Los Angeles, Harmony Project, Barnhart School and Los Angeles City College.
- Farewell by Dave Wayne
- Burnt Hibiscus by Dave Wayne