Missa Brevis, written for choir and wind band, was commissioned by the Conseil Départemental pour la Musique et la Culture de Haute-Alsace (Dir.: Philippe Pfisterer) in Guebwiller (France), in celebration of the millennium of Pope Leon IX'sbirth in Éguisheim (France). The composer conducted the first performance on June 23, 2002. It was performed live for the French television channel France 2. The mass movements Kyrie, Gloria, Credo, Sanctus, Benedictus, and Agnus Deiare very suitable for the Catholic as well as the Protestant liturgy. For this mass, various ways for performing in diverse variable strengths are possible. An instrumental performance is possible if the brass represents the choir parts. In thisoption, it is desirable for the brass to be positioned separately from the rest of the band (on a gallery, for example), so that the idea of two choirs is approached. In a performance with a large choir, the brass can work very well as a support. Inthat case, t he dynamics of the brass should be adapted somewhat, since these are actually intended for an instrumental performance. You can also leave out the brass entirely for the benefit of the choir. For the accompaniment of smaller choirs, youcan opt for a small ensemble from the band. This can also be a quartet, put together as desired. For the performance of this mass, the obvious choice is one of the above options. However, as an alternative, a performance with a combination of theseoptions (vocally/instrumentally) is also possible - not just from an artistic point of view (variation), but also from a practical starting point - for example in the case that the choir has rehearsed only two movements. With a full strength, theconductor can vary the instrumentation to his or her liking. Then the brass can also play a role in the accompaniment (instead of supporting the choir). The following combinations are possible:
1. clarinet choir (from Eb Clarinet to BassClarinet)
2. clarinet choir