In a continuation of this season’s temporal theme, SPCO violinist Eunice Kim takes center stage in “The Four Seasons of Buenos Aires”, Astor Piazzolla’s impassioned response to Antonio Vivaldi’s “Four Seasons” and filled with the fiery drama of the dance halls and streets of Buenos Aires. Tracing Visions, a two-movement work for string orchestra by Sandbox Composer-in-Residence Valerie Coleman, “embodies the common threads of community and empathy,” in the words of the composer, offering an elegy of grief and a juba of celebration.