All-night vigil
Tchaikovsky's setting of the all-night vigil , along with his Divine Liturgy and his collection of nine sacred songs were of seminal importance in the later interest in Orthodox music in general , and settings of the all-night vigil in particular . 
<triplet> setting <subj> Tchaikovsky <obj> composer <triplet> Divine Liturgy <subj> Tchaikovsky <obj> composer