Maruyama referred to this musicological concept to capture a socio-historically substratum underlying human thought. In particular, the authentic performance movement owes much to historical musicological scholarship. Has a number of publications in various Russian musicological journals. His manuscripts (radio broadcasts and musicological writings) are kept at the Cambridge University Library. Despite musicological doubts, the piece has been ever popular amongst violinists. During the 20th century, Gregorian chant underwent a musicological and popular resurgence. This assisted him in undertaking extensive musicological research. Their work has elicited serious musicological analysis. Monika Schuol considers a 'double oboe' most likely for musicological reasons. When the Fuhrer assumed power the Nazi revolution was immediately expressed in musicological journalism. Charles Seeger and Mantle Hood were two ethnomusicologists that adopted the musicological approach. Those who practice the musicological approach study people and cultures to learn about music. However, musicological analysis has shown that they maintain a mature, individual style. In 1980 the Chinese Musicians' Association was formally elected to the International Musicological Society. The songs were also studied from a musicological perspective by Schiffer (1936).