From 1996 to 2001 he was concertmaster of the Rochester Philharmonic Orchestra. He has performed as soloist with the Leningrad, Moscow, and Dresden Philharmonic Orchestras, the Montreal Symphony Orchestra, the Danish and Berlin Radio Orchestras, and the Moscow and Zurich Chamber Orchestras, the Boston Philharmonic Orchestra, Detroit, Baltimore, Lansing and Seattle Symphony Orchestras, and at the Kennedy Center in Washington D.C. in the United States, and has toured Germany, Ireland, Israel, Italy, Singapore, Korea, Taiwan, England, Venezuela and Japan. In Japan, he played with the New Japan Philharmonic, the Japan Century Symphony Orchestra and the Hiroshima Symphony. Also an active chamber musician, Kaler has performed for several summers at the Newport Music Festival in Newport, Rhode Island. His solo recitals have taken him throughout Europe, Scandinavia, East Asia, and the former Soviet Union.