MuseScore 4.2 як інструмент композитора-аранжувальника

The purpose of the article is to research and develop algorithms for the operation of modern software of the professional music editor MuseScore 4.2. The research methodology is based on the application of general logical methods of cognition, namely, analysis, synthesis, and induction. The scientific novelty lies in the identification and development of purposeful methods of work in the professional music editor MuseScore 4.2, which allows the creation of musical compositions for piano, guitar, orchestra, choral parts, musical groups, marching bands in various styles using modern software tools, as well as the possibility of using music information technologies in the further artistic practice of musicians, composers, arrangers, sound producers, sound engineers, producers and in professional music education. Conclusions. MuseScore is a free and multifunctional music notation editor that is not inferior in its capabilities to many commercial counterparts. It is perfect for beginner musicians, students of music education institutions and professionals who are looking for a free and high-quality solution for creating and editing notes. MuseScore is distributed free of charge and has open-source code, which means that anyone can participate in the development and improvement of the program. The programme runs on Windows, macOS and Linux, which makes it accessible to a wide range of users. MuseScore has an intuitive and user-friendly interface that is easy to learn even for beginners. The programme is easy to learn compared to such editors as Finale and Sibelius, and is quite advanced for professional use. MuseScore supports all the necessary functions for creating and editing musical text of any complexity, has a large and active community of users, where you can get help, share your work and find a lot of useful information, MuseScore developers are constantly working on improving the programme, adding new features and improving existing ones. MuseScore is a powerful and intuitive musical notation editor that opens up endless possibilities for users of any level. From beginners to professional composers, arrangers, sound engineers, everyone will find in it the tools to realise their creative ideas.