Hi,There are a number of midi sites with the midi file of this music. If you then download a demo copy of Noteworthy, or some other music notation software you can see the music notation on screen and print it out.
This is one site, but check out a few because one of the different versions available may appeal to you more. http://www.mindspring.com/~shadowalker/midi.htm#JethroTull
I did an internet search for midi files and Jethro Tull. SEarch term for Infoseek search engine is: midi|Jethro-Tull
(type it exactly as written here)
Helen