Jean Langlais was a French composer and organist who is considered one of the most important figures of the twentieth century. He composed over 100 works for the organ, including several masses that are still widely performed today. In this review, we will take a closer look at some of his most popular pieces in the category of "Orgues" and discuss their qualities and significance. First up is Missa in Simplicitate, which was written by Langlais for solo voice or choir with accompaniment from the organ or harmonium. This piece is known for its simplicity and beauty, as well as its ability to evoke a sense of peace and tranquility. The music is gentle and soothing, making it perfect for religious services or other contemplative settings. Another popular work by Langlais in this category is the Missa Misericordiae Domini, which was written specifically for solo voice with organ accompaniment. This piece is known for its emotional depth and spiritual resonance, as well as its ability to inspire a sense of wonder and reverence. The music is powerful and uplifting, making it an excellent choice for religious services or other special occasions. In addition to these two works, Langlais also composed several motets that are highly regarded by organists and musicians alike. These pieces are known for their beauty, complexity, and emotional depth, as well as their ability to evoke a sense of spirituality and contemplation. The music is often characterized by its use of counterpoint, harmonic richness, and expressive melodies. Finally, we have the Messe Solennelle, which was written by Langlais for solo voice with organ accompaniment. This piece is known for its grandeur and majesty, as well as its ability to inspire a sense of wonder and reverence. The music is powerful and uplifting, making it an excellent choice for religious services or other special occasions. Overall, Jean Langlais' works in the category of "Orgues" are highly regarded by musicians and organists alike for their beauty, complexity, and emotional depth. These pieces are perfect for religious services, concerts, and other special occasions where a sense of peace, tranquility, and spirituality is desired.