His early music was written in a free atonal style, but from the 1980s onwards his works were more tonal.
In 2005 he was commissioned by Vladimir Ashkenazy for an orchestral work, Music in Dark Times, which Ashkenazy performed with the San Francisco Symphony Orchestra in March 2009.
Gerber's Piano Trio was commissioned by the Hans Kindler Foundation, and his Fantasy for Solo Violin has been recorded on the Naxos and CRI labels. His output also includes two symphonies, six string quartets and much vocal, choral and piano music.
Steven Gerber died on 28 May 2015, aged sixty-six.