SUCH SCHOOL OF MUSIC SHOULD BE DEVELOPED, IT IS CONTENDED. To This And Chairman of Philhar monic Orchestra Would Estab ish Chair at American Academy in Rome. New Yoas, April 18.~Establishment of a chair of American music at the American academy in Rome devoted to the study and development of jazz ru sic is being considered, Mrs. Charles 5. Guggenheimer, chairman of the Phil harmonic orchestra, announced today. Mrs. Guggenheimer expressed the be lief that American music, popularly known as jaz, typified the pulse of America, had attained a world-wide ap peal and had become accepted as the first really American art. Speaking on behalf of the committee of the academy, which every year sends art students to continue their studies in Rome, Mrs. Guggenheimer said this year's benefit concert for the academy would be of jazz music. Part of the funds thus raised would be used to es tablish, the contemplated chair, she added, “Today all over Europe,” she said, “the demand is great for American, or jazz, music. It is truly American, and is having a distinct bearing on the work of the musical composers of the world. I firmly subscribe to the theory that this American school of music should be de veloped, and believe that in the not re mote future a really great American composer will be produced.”