I played Angelus by Henriette Renie for a church service today. I tried to find out online what this meant and could only find that Mdm. Renie was very religious and Angelus was part of a Catholic service. However, the music director put notes in the church program saying: “This is a work based on the Angelus bell pattern, a call to prayer often rung at 6:00 pm comprising of three sets of three strikes of the bell followed by 9 strokes, though the latter may be substituted with a variety of strikes.”
I hope this explanations helps others to understand the music.
PS If you play Angelus notice there is a separate note at the top of the glissandos. This is another bell sound The score is available on imslp.