Works for piano, violin and chamber orchestra performed by pianist Gleb Ivanov, violinist Corey Cerovsek, and the Gardner Chamber Orchestra.Johann Strauss II (arranged by Grünfeld and Ivanov): Die FledermausKurt Weill: Violin ConcertoMost of us who know the music of Kurt Weill think of him as an important, if somewhat atypical, composer of musical theatre, the writer of such dark show tunes as “Mack the Knife” from The Threepenny Opera. But before he set to work revolutionizing music theatre with Bertolt Brecht, Weill was a pupil of one of Europe’s most famous composers, and he wrote a few pieces in more typical classical forms, one of which—his violin concerto—we’ll hear today.We begin with a little amuse bouche: an arrangement by Grünfeld of themes from Johann Strauss’s Die Fledermaus performed and further embellished by Gleb Ivanov. Grünfeld was a gifted pianist who worked for many years in the Austrian Imperial Court. His composition was mostly limited to virtuosic works for his own instrument, and he had a particular penchant for Strauss transcriptions. In this performance, Ivanov puts his own stamp on the piece, which is perhaps a bit musically fluffy, but devilishly challenging technically.