Boston-based Eleuthera Trio (Lois Shapiro, piano; Francine Trester, violin; Julie Reimann, cello) will perform ‘Across Divides’ on Sunday September 18 at 3PM at the First Unitarian Universalist Society in Newton (1326 Washington Street). Tickets/donations can be made at the door or online. The concert benefits Doctors Without Borders — a nonprofit assisting victims of conflict, natural disasters, epidemics and healthcare exclusion — particularly in support of their work in Ukraine and Afghanistan. The concert program evokes folklore of Ireland, Argentina, the Ukraine, and Basque country: Frank Martin’s scintillating Trio on Popular Irish Melodies, Astor Piazzolla’s exciting Otoño Porteño, Ukrainian composer Myroslav Skoryk’s hauntingly beautiful Melody, and Maurice Ravel’s exquisite Trio in A minor.