Some of my Dad's favorites:
Jethro Tull - Locomotive Breath
Jethro Tull - Aqualung
Cool tunes: Here's Jethro Tull's best tune: don't argue, I'm right.
Sorry, Wick, but I am sittin with Supe's dad on this one. Too Old to Rock & Roll might be Tull's best post '75, but their earlier stuff was far better -- in my humble opinion. I grew up listening to Aqualung, Thick as a Brick, Skating Away, Bungle in the Jungle, etc.