If you know of a song that you think would make a good lesson, here is the place to bring it up. As of May, 2015 we have over 800 song lessons but are always on the lookout for more. Be sure to point out what about the song makes it a good candidate, unique or unusual, a particular part that interests you, or just that you think a bunch of members would enjoy it. An embedded video would be helpful as well.
Love Tull. Velvet Green would be great. Many cuts from Songs From The Wood lend themselves to acoustic lessons. They would be a bit more advanced though.