David Danzmayr’s 2021 SLSO debut delighted listeners and players. He returns with a program that thrills and sings. Danzmayr pushes Beethoven’s Second Symphony close to the edge, flirting with danger. SLSO Principal Oboe Jelena Dirks’ goal is to sing through her instrument. She has every opportunity in the songful, break-your-heart musical world of Ralph Vaughan Williams’ Oboe Concerto. Strum by Jessie Montgomery, the in-demand American composer of this moment, salutes American folk music, its spirit of dance and movement.