Choral Choir (SAB) - Level 2 - Digital Download SKU: A0.719710 Composed by Jacobus Gallus. Arranged by Curtis Hanson. Christian,Easter,Renaissance,Sacred. Octavo. 5 pages. Curtis Hanson #3539593. Published by Curtis Hanson (A0.719710). This Is the Day by Jacobus Gallus (Jacob Handl) is a fairly well known anthem for Easter Sunday frequently performed double choir. This setting simplifies the choral writing to a single SAB choir with the organ (or piano) and optional trumpet filling in Choir II. It makes a wonderfully festive addition to an Easter service with minimal musical forces.