The purpose of the following study is to make to stylistic analysis, on the basis of form, harmony, melody, and rhythm, of the Concerto for Two Pianos and Orchestra by Harl McDonald, a twentieth-century American composer. When a composer begins the composition of a concerto he is faced with a series of specific problems, e.g., the degree of prominence to be given the soloist in relation to the orchestra, the technique of the solo instrument, the traditional first movement sonata form, and the balance between solo and orchestra in regard to tone color and sound mass. By determining the elements of style typical of this particular work, the investigator aims to set forth in a general way to how the composer treated each of the problems stated above.The concerto for Two Pianos was selected for study because of its modernity and because of the writer's active interest in works for this medium.