Two very similar renditions of the beautiful Scottish folk song, Loch Lomond, arranged by Ralph Vaughan Williams--
The two versions are meant to sound alike because the singer in the first one is copying the second one. Now here's the kicker: The second version is a professional recording by the group Chanticleer. In the first one, all ten parts are sung by one man, overdubbing each voice on a computer using using Acoustica Mixcraft software and a $20 headset microphone. Whichever version you prefer, I think you'll agree that both versions are very moving.