(e) Other Specialized Services Provided by Professional Staff. Specialized services provided in accordance with an eligible student's IEP in the areas of music therapy, adaptive physical education, recreation therapy, vision training, home/school facilitation and interpretation for the deaf or hard of hearing. Such services must be provided by professionals trained through an accredited program or through meeting the requirements of their professional organization. Specialized services may be provided individually or in groups. The additional costs of such professional staff providing extended day or year services as specified on the eligible student's IEP shall be included in the calculation of individual student instructional cost.