This was written by Graham Nash when he was a member of the Hollies, but it was rejected as not commercial enough. Here is a clip of the group trying out the backing track.
A clever person put it together with a Nash solo track and created how it might have sounded if the Hollies had persevered with it. It doesn’t work for me.
When Nash became part of Crosby, Stills and Nash it was recorded for the group’s self-titled album and released as a single in July 1969. It reached No 28 in America and 17 in Britain.
Here they perform it at Woodstock in August 1969.