open 12 to 7 today ! on this date in 1969 ! Stand Up is the second studio alb** by the British rock band Jethro Tull, released in 1969. Before Stand Up recordings began, the band's original guitarist Mick Abrahams resigned because of musical differences with Ian Anderson; Abrahams wanted to stay with the blues rock sound of the debut This Was, while Anderson wished to add other musical influences such as folk rock. He was replaced by guitarist Martin Barre, who appeared on every Jethro Tull alb** from this point on.