I love Back up train. This was the first time I had heard anything from Al Greene. I graduated from high school in 1968.I thought that it was beautiful then as I do now. I am happy that I was able to find the year it was released, because if you ask what was his first song and you will get: I'm so tired of being alone,and Let's stay together. I knew that was not true, because Back up Train,was before they were. We are talking about more than 50 years. I thank God for the love music that we had back then. By the way, he is just Rev. Al, to me