Veni Sancte Spiritus is a sequence prescribed in the Roman Liturgy for the Masses of Pentecost and its octave, excluding the following Sunday. It is usually attributed to either the thirteenth-century Pope Innocent III or to the Archbishop of Canterbury Stephen Langton. Veni Sancte Spiritus is one of only four medieval sequences which were preserved by the Council of Trent in the Missale Romanum published in 1570.
The chant is in the Dorian mode.
See a list of other popular chant themes here.
Video:
Pierre Cochereau – Choir of Notre Dame sings ‘Veni Sancte Spiritus’ – Paris
Clint Kraus – Improvisation on Veni Sancte Spiritus – St. James Cathedral, Seattle, WA