In the 19th century, the romantic composer Franz Liszt (1811-1886) created a large number of piano works in his life. He has a rich variety, a large number, and a variety of styles. His famous music is also discussed and performed by most scholars and performers. After 1860, he wrote and transcribed a number of compsitions that reflected his religious beliefs and spiritual levels, such like "Légendes", "Ave Maria d’Arcadelt ", " Fantasia and Fugue on the Theme B-A-C-H " etc.

Liszt completed "À la Chapelle Sixtine" in 1862, excerpted from the theme melody of Allegri's "Miserere" and Mozart's "Ave verum corpus", full of historical significance and background. The two works of the story are combined and re-written into a whole-new masterpiece.

This interpretation report is focused on the meaning of the life stage and the mood of Liszt when he composed "À la Chapelle Sixtine", the original meaning of "Miserere" and "Ave verum corpus", the structure of the music itself, its relevance to the original compositions, and the ultimate spiritual sublimation, done a complete introduction and discussion. In order to perform this work well, the performer can understand Liszt’s mood when he composed, and communicate his idea and mission through this article.