Like all community orchestras in the Boston area, the Waltham Philharmonic Orchestra lives in the shadow of the renowned Boston Symphony Orchestra. Made up of retired professionals, semi-professionals and a few amateurs, the WPO nevertheless acquits itself quite well. This evening’s program was devoted to Russian music of the Romantic Period, with works by Tchaichovsky and Glazunov. A violinist from the Boston Symphony Orchestra played a movement from the Glazunov Violin Concerto. The performances were splendid, I thought, and so did the audience.