From a review about the new album in the online paper, The Statesman:
Witness No More Walks in the Wood, a harmony-rich, part-a cappella showcase with words adapted from a work by the US poet and Professor Emeritus at Yale, John Hollander. Henley came across the poem (then entitled An Old-Fashioned Song) while perusing The Oxford Dictionary of American Poetry. Having set it to music and made a demo on which he sang all four harmonies himself, he asked Hollander, now in his seventies, for his blessing. “He sent back a very cordial note saying that we could do the song. I said, ‘Great! Go and get yourself a good lawyer, because this is the music business!’"