A nondramatic literary work may be performed or transmitted to blind persons or other handicapped persons who are unable to read normal printed material, or to deaf or other handicapped persons who are unable to hear the aural signals accompanying a transmission of visual signals if the performance is made without any purpose of direct or indirect commercial advantage and the transmission is made through the facilities of a governmental body, a non-commercial educational broadcast station, a "subcarrier" of an FM broadcast station or a cable system.