Jethro Tull at 50: Leader Ian Anderson says skipping Woodstock was
Who turned down Woodstock? - Quora
Ian Anderson - Wikipedia
Why didn't Led Zeppelin and Jethro Tull attend the Woodstock festival in the summer of 1969? - Quora
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Ian Anderson interviews
Ian Anderson interviews
Jethro Tull's Ian Anderson: 'Dressing up was fun – but my codpiece was distinctly unfragrant', Music