Music acquired a new function, advertising. Democratic musical culture was reflected in the works of many progressive musicians who struggled for music with content and affirmed the ideas of humanism and nationality (in the sense of close ties with the people). In addition to musical theater and...
Ultimately I’m not the one to answer that question but I’d like to throw some ideas to add to the speculation. First, the choices a composer makes, like the choices of a painter, a writer, etc. are the stuff of the mystery of creation itself. Why “A major”, or why that tunin...
The instrumental variable (IV or instrument) model is a general approach to estimate causal effect in the presence of unobserved variables [1,2,3,4] and is used in a wide range of literature, such as economics [5,6], sociology [4,7], and epidemiology [8,9]. A major challenging ...