"Hark! Glorious Angels Sing" is a Christmas cantata book that has become one of the most famous creative legacies of the composer Felix Mendelssohn-Bartholdi. In this book, the author embodied the joyful atmosphere of Christmas holidays, conveying the amazing mystery of Christmas night through the music of the word. The book "Hark! The glorified angels are singing" offers the reader not only musical notes, but also the words of Christmas carols that inspired the author to create a cantata. This is a piece that is extremely well-known and respected both among musicians and among lovers of the Christmas tradition. Reading the book "Hark! The glorified angels are singing", the reader dives into the world of unique sounds and feelings that have accompanied the Christmas holidays for centuries.