Hear the CSO’s own talented musicians as soloists: concertmaster Joanna Frankel and principal oboist Hugo Souza perform Bach’s captivating C minor concerto for oboe and violin. Joan Tower’s Duets spotlights shifting pairs of instruments in duet configurations. Brahms’ first symphony famously took the composer twenty years to complete, resulting in a work of stunning power and beauty, cemented as a pillar in orchestral music.