I have blogged a lot of Chris deSilva songs in the last two year and the good news is that he has updated his website with new sheet music.
A highlight is his setting of the Easter Proclamation, which is an epic achievement. I did ask him at the APMN conference in 2017 if he would tackle it and he has done so.
He has melody line and full music at his site along with a sample MP3 to get the idea.
It is in nine parts with nine tunes and most certainty worth a look for anyone who wants to cantor this important text this year.