It's pretty subtle, but I can hear it and even though the music is beautiful I can't get past wondering what it would sound like naturally. These guys can sing - why ruin it by making it overly pitch perfect?
YouTube - Poor Wayfaring Stranger - Peter Hollens - Feat. Swingle Singers - A cappella Cover - Beatbox
YouTube - Poor Wayfaring Stranger - Peter Hollens - Feat. Swingle Singers - A cappella Cover - Beatbox