This is a short choral piece, likely intended for liturgical use. Its beauty lies in its simple, devotional melody and harmonious texture.
Focus on achieving a smooth, legato line and gentle dynamics.
Adoramus te is rated Henle level 5 of 9 — late intermediate repertoire, roughly ABRSM grades 6–7.
You should be comfortable at Henle level 5 — meaning you can already play level 4–5 pieces cleanly. Learning it one level early is possible as a stretch piece, but more than that usually leads to months of frustration.
Adoramus te is available as free public-domain sheet music on IMSLP — the score is linked directly from this page.