He was also the founding concertmaster and soloist with San Francisco’s Midsummer Mozart Festival Orchestra with George Cleve.
[1] In popular music, he played violin on several tracks on the 1975 rock album Ambrosia (by the band of the same name), including the solo on "Holdin' on to Yesterday".
Kobialka also served on Advisory Boards for Beam Foundation, Institute of Holistic Medicine, and Pacific Guqin Association.
Kobialka was commissioned to compose a film score for the "Split Horn" documentary Life of a Hmong Shaman in America, and wrote 10 orchestral and solo violin compositions for various instrumental combinations.
Over his career, he commissioned over 30 works from composers like Charles Wuorinen, William Bolcom, Wayne Peterson, George Rochberg, Vivian Fine, Arthur Custer, Meyer Kupferman, Marta Ptaszynska, Theodore Antoniou, Fred Fox, and Benjamin Lees.