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The article reveals the features of philosophical ideas about the music of N.O. Lossky. It is established that Lossky’s philosophical judgments about music are organically connected with his philosophical doctrine – intuitivism. The study purpose is to learn the philosophy of music through the Nikolai Onufrievich Lossky’s intuitivism. The most important, from the point of view of the author of the article, provisions of Lossky’s intuitivism are noted: 1) intuitivism provides a direct vision of the object by the knowing subject in the original, and not by means of a copy, symbol, construction, etc.; 2) intuitivism is based on intuition, acting in three types (modes): sensual, intellectual and mystical, while taking into account the legitimization of two spheres by the philosopher: the world and the Superworld (the Kingdom of God), sensual and intellectual intuition work in the world, mystical intuition prepares a breakthrough into the Superworld (the Kingdom of God). It is shown that music is an integral component – a staple – of Lossky’s philosophical doctrine. It is argued that, according to Lossky, it is music that contributes to the most distinct vision of the object by the cognizing subject in the original, and the full realization of the mission intended for them by all three types of intuition. Comparative, historical and logical research methods were used to solve the tasks. The study used the works of the author, Nikolai Lossky and prominent philosophers such as B.V. Asafyev, A. Bergson, A.F. Losev, P.A. Florensky, and the memoirs of Prince E.N. Trubetskoy.

IUCrJ 8(1), 124 - 130 (2021). doi:10.1107/S2052252520015778, X-ray photon correlation spectroscopy (XPCS) is a routine technique to study slow dynamics in complex systems at storage-ring sources. Achieving nanosecond time resolution with the conventional XPCS technique is, however, still an experimentally challenging task requiring fast detectors and sufficient photon flux. Here, the result of a nanosecond XPCS study of fast colloidal dynamics is shown by employing an adaptive gain integrating pixel detector (AGIPD) operated at frame rates of the intrinsic pulse structure of the storage ring. Correlation functions from single-pulse speckle patterns with the shortest correlation time of 192 ns have been calculated. These studies provide an important step towards routine fast XPCS studies at storage rings., Published by Chester