Music has always been an important part of the Notre Dame Cathedral in Paris. At the Cathedral’s inception, the Notre Dame Choir School filled its halls with magnificent polyphonies as the voices of the choristers rang in harmony with those of the builders. Ever since then, the Notre Dame Cathedral has prided itself in upholding the highest standards in musical performance and training, and each generation in turn has added to the Cathedral’s musical history. In order to preserve the Cathedral’s rich musical history and the high quality of musical instruction provided by the Notre Dame Choir School (the Maîtrise), the State, the City of Paris, and the Paris Diocesan Association decided to found the association of Musique Sacrée at Notre Dame de Paris in 1991. Charged with the responsibility of coordinating all musical activities in the Cathedral on both administrative and artistic levels, the Musique Sacrée’s primary tasks are to teach music, train singers, organize the liturgy in the cathedral, prepare concerts and recitals, and research the musical traditions of Notre Dame. It also plays an important role in the creation and circulation of new musical works. In order to facilitate the execution of all these tasks, various vocal and instrumental programs were put in place, notably the Maîtrise Notre Dame de Paris, which consists of the Children’s Choir, the Youth Ensemble, the Adult Choir (for those undergoing professional training), and the Gregorian Ensemble. From time to time, these groups perform with baroque or symphonic ensembles. The great organ, the choir organ, and their titular organists also play an important role in the organization. In 2006, the Maîtrise Notre Dame de Paris was awarded the prestigious “Prix de chant choral Liliane Bettencourt” by the Académie de Beaux-Arts. The concert season, which includes organ recitals on Saturday evenings and performances of around fifty guest choirs each year, as well as the nearly constant presence of music in the Cathedral demonstrate the high level of musical excellence to which the organization is committed to upholding.