We chose this as both tenor and bass lines are rather high, so it can be sung by SAAT as well as by SATB.
We're using the Big Lochac Snogbook (page 15).
We might well sing it up a tone (in C, instead of B-flat). It's in a reasonable range for us at either pitch, but with a woman singing the tenor line the lovely canon might stand out a little more if the tenor line is not too low.
We usually singing the first section (in 3/4) twice through, then slow down a little for the 4/4 section, and slow again for the final "amen". Watch the conductor!