Assertion: tramp's appearance | /r/HasProperty | jethro tull
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text: The album features appearances by Alan Stivell, Michael Sadler (Saga), Jesse Sibenberg and John Helliwell ( Supertramp ), Martin Barre, pictured, (Jethro Tull), Moya Brennan (Clannad), Roberto Tiranti (Labyrinth), Siobhan Owen, Maite Itoiz (Elfhental), John Kelly (The Kelly Family) and Sonja Kristina (Curved Air).