He possessed a broad knowledge of the full range of the Jewish liturgical, classical and secular musical repertoires, as well as Jewish history and philosophy. He was the cantor of the only synagogue in Queens which had a professional choir at all services. The choir performed behind an ornate grate above the pink marbled Ark. During the first 47 years, the synagogue did not have a cantor with the rabbi conducting services and the congregation singing the responses. In 1923, it obtained an organ which ranks in quality with some of the finest organs in Europe. The Free Synagogue of Flushing has a youth and adult education program. It provides space to various political, community organizations, and fledgling church groups. Throughout its history, the synagogue has remained active in social action causes. Every year, it commemorates Martin Luther King, Jr.'s birthday in its sanctuary and hosts interfaith events. The white Victorian-style building that White built was moved in 1926 to the Sanford Avenue frontage of the synagogue to make way for a larger sanctuary, the present Free Synagogue of Flushing. This neoclassical building designed by Maurice Courland, who is a specialist in synagogue design, features a massive portico supported by four Ionic pillars. Ascending the stately steps is magnificent sanctuary where dark green pilasters support the walls upon which rest the enormous dome. The building is beautified with ornamental Judaic motifs, such as a seven-branched menorah right outside the doors of the synagogue. Tiffany style stained glass windows crafted in Czechoslovakia bathe the sanctuary in rich, radiant colors. Inscribed in the front is the verse "FOR MINE HOUSE SHALL BE CALLED A HOUSE OF PRAYER FOR ALL PEOPLE" (). The windows depict Noah's Ark, the lions of Judah, great swirls of leaves and vines and delicate flowers used in the Sukkot prayer, and the two hands of the Priestly Blessing. In the center of the domed ceiling that covers the entire sanctuary is a smaller stained-glass dome designed around a Star of David and intricate, gold-leaf filigree, hand-turned and carved, graces the wood that is a dark green color. It is a synagogue-in-the-round which provides a sense of intimacy during its spiritual services. In 1964, a three-story school building was added to accommodate the religious school and adult education classes. It is listed on both the New York State and National Register of Historic Places. Since 2009 the synagogue building has been undergoing an extensive renovation.