The 2025 Robert Mann Chamber Music Series opens with a program highlighting the Festival’s own musicians. Schubert left his String Trio in B Flat, D. 471 unfinished, but its single complete movement is a Classical jewel full of spontaneity. Prokofiev’s dizzying Quintet in G Minor was originally written as a ballet based on Parisian circus life and features aggressive and ever-changing rhythms. Brahms’ Third Piano Quartet is at times unsettled; an autobiographical work for Brahms, the music’s evolving moods reflect the composer’s own heartaches.