Of the modern composers, we would like to mention the so-called "Kazakh Mozart" Rakhat-bi Abdysagyn. The young musician's worldwide fame came to him early, before he was 20 years old. Rahat-Bi became a student at the age of 13, a master's student at 17, brilliantly defended his master's thesis at the age of 18, and completed doctoral programs at three prestigious universities in Italy at the age of 20. At the age of 10, Rahat-bi was writing music that mature composers could be proud of. His large-scale symphonic canvases and chamber works are performed in famous concert halls in Italy, Austria, France, England, Germany, Switzerland, Spain, the Czech Republic, Slovenia, South Korea, Turkey, Ukraine, Russia, Romania, Egypt, Jordan, China and the USA. Rahat-bi is the author of a number of scientific articles and books, at the age of 14 he published a unique work "Mathematics and Modern Music".