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McCandless is active in classical music. As an orchestral soloist, he has performed with the Camerata Chamber Orchestra of Mexico City, the Saint Paul Chamber Orchestra, Philadelphia Orchestra, Buffalo Philharmonic Orchestra, Los Angeles Philharmonic, and the Stuttgart Radio Symphony Orchestra. Three of Paul's orchestral scores are heard on the album "Oregon in Moscow". "Round Robin", the opening track, received 2001 Grammy nominations for Best Instrumental Composition and Best Instrumental Arrangement.