Sub tuum praesidium (Hallopeau) - Chorus Austin by Aurélien Hallopeau published on 2023-12-14T08:39:39Z Texan choir Chorus Austin (cond. Ryan Heller) performs "Sub tuum praesidium" - a choral piece for SATB choir a cappella composed by Aurélien Hallopeau, setting the oldest known prayer to the Virgin. This piece is the winner of the Young Composers Division of the 2023 Chorus Austin Composer's Competition Genre Classical