A classic Grateful Dead show from Boston in 1969 just popped up onYouTube. It's just the audio but literally is one of my favorite shows.
This was a bootleg I wore out when I was young it's a very interesting show especially for the year. It has an interesting song selection for 1969. The version of He was a friend of mine is by far their best and the Baby Blue is awe-inspiring. You will not hear many better shows from this era.