The All-Night Vigil is an a cappella choral composition by Sergei Rachmaninoff, his Op. 37. The piece consists of settings of texts taken from the Russian Orthodox All-night vigil ceremony. It has been praised as Rachmaninoff's finest achievement and "the greatest musical achievement of the Russian Orthodox Church”; it was one of Rachmaninoff's two favorite compositions along with The Bells.

In this arrangement for saxophone choir, the warmth, homogeneity and expression of the sound are central. 

Example: - https://www.youtube.com/watch?v=InMhSNBlIg8 (vocal)