Uncommon original program sheet from a 1927 performance by the Boston Sinfonietta, the chamber music orchestra made of Boston Symphony members which Fiedler formed in 1924. Mounting traces on verso, crease to lower left corner and some contemporary pencil notes; overall fine.  5.25 x 8.75 inches (13.3 x 24.8 cm.). An unusual program from Fiedler's early career, before he began leading the Boston Pops.