Adriano Secco arranged the version we’re using in choir. He’s done much more besides, a lot of nice work.
He’s made audio tracks of the various SATB parts, all of them. I clicked the button for the Skye SATB A Capella Tenor track and found out what I was supposed to be singing. Very interesting.
His website www.adrianoseccomusic.it has Skye and many other of his arrangements freely available.