American pianist Andrew von Oeyen made a memorable debut with the orchestra in Mendelssohn’s “Piano Concerto No. 1 in G Minor.” Despite his youthful appearance, von Oeyen proved to be a commanding keyboard presence, his fine technique put to the test by the considerable demands of this popular concerto. While the Mendelssohn certainly has its bravura moments, von Oeyen achieved them without resorting to keyboard theatrics or a clangorous tone. And in the slow movement’s delicate manner, the pianist’s filigree passages were exquisitely conveyed. The finale was suitably rhythmic with balances between soloist and orchestra always carefully gauged. Von Oeyen’s performance was further distinguished by an intelligent approach that found an ideal match between the concerto’s classical and romantic influences. Von Oeyen’s encore, Debussy’s ubiquitous “Clair de Lune,” turned out to be an ideal choice given the concert’s theme. The pianist’s subtle approach drew the audience into Debussy’s moonlit sound world, and in doing so, accomplished what all concert artists set out to do: leave an audience wanting to hear more.