The publishing house "Muzyka" offers electronic versions of sheet music, books, teaching aids, published in different years by the largest music publishing house in Russia. Children and adults, professionals and amateurs - everyone can find something interesting for themselves in the extensive and constantly updated collection of the E-MUSICA mobile application. There are textbooks that are constantly in pedagogical use, and recently released anthologies and teaching aids for secondary schools, textbooks on the history of music, books from the School Library series, letters by Beethoven and Tchaikovsky, popular and rare sheet music.