Normally "Ave Maria" by Vladimir Vavilov however commonly attributed to Giulio Caccini arranged by Francis Chan. This was offertory performed by a chamber ensemble at the Loma Linda University Church in Loma Linda, California (www.lluc.org). After hearing this for the first time (that I could remember) in 2017, I searched and searched for a copy of this piece. I could not find an official published version for sale nor could I find an arrangement with orchestration that I liked so ended up putting this together at that time. I am sure there are many versions out there now...
I will let you review all the commentaries and internet content and let you decide who you think composed this piece...