About the piece
The opening Kyrie of one of the great Masses in history. The edition, 224 measures long, carries the solo voices, the choir and a violin part.
How to prepare it
This is an advanced work: it needs a large, well-trained choir and experienced soloists. The range demands are high (the choir sopranos span D4–A5 (a twelfth)) and vocal stamina is a real factor. Work by sections and voices, learn the choir entrance first and leave the solo parts for last. The 2/2 pulse must stay constant: rehearse with a metronome before thinking about dynamics.
When to use it
It suits sacred concerts and solemn celebrations, and as a long-term project for a choir that wants to grow its repertoire.