I have not seen any references to Peter and Bethany Yarrow and did not find any threads in a search so I am going to throw this out there. Here is a link to a performance of Long Chain On on Utube.

Here

Here is a link to a Bethany and Rufus performance on Utube

Nobody's Fault

For those who do not know, Bethany is Peter Yarrow's daughter and is a wonderful singer in her own right. I believe a CD is in the works with this song included.