For those interested in harmony singing here is a nice short video demonstrating the structure by Stephen Mougoin. Perhaps not the simplest of tunes to start on but the basics are well covered.
In this video Stephen Mougin explains and demonstrates bluegrass harmony singing using Lonesome Road Blues as his example tune. This informative and entertaining video will help you understand the basics of singing harmony in bluegrass music. For more information about Stephen and his guitar, vocal and band lessons, visit: www.stephenmougin.com.