Music history doesn’t have many neat watershed moments, but a pivotal work in the career of Schoenberg — and the development of Western music — was his String Quartet No. 2 (Op. 10), written when he was shaken by personal trauma. The enterprising new-music ensemble International Street Cannibals takes this quartet as fodder for an evening that explores the currents of influence that seem to intersect in this work.

Under the title “Air Schoenberg: Connecting Flights,” the concert, on Wednesday, March 22, includes music by Brahms, Zemlinsky, Korngold and Berg. Among the performers are the brilliant pianist Conor Hanick and the soprano Ariadne Greif, an artist known for her fearless performances of raw emotionality. Together they traverse art songs spanning Schubert and Schnittke. (St. Mark’s Church in-the-Bowery; streetcannibals.com.)