▁was ▁not ▁a ▁son ata ▁but ▁a ▁sym phony ; ▁orch estr ated ▁in ▁like ▁manner ▁to ▁the ▁composer ' s ▁tone ▁po ems , ▁it ▁would ▁indeed ▁be ▁an ▁ep ic ▁work . ▁B ax ▁agreed ▁with ▁them ▁and ▁began ▁orch estr ating ▁the ▁work . ▁F inding ▁the ▁central ▁movement ▁over ly ▁pian istic ▁for ▁such ▁treatment ▁and ▁un com fort able ▁with ▁its ▁tone ▁of ▁rom antic ▁nost alg ia , ▁B ax ▁chose ▁to ▁replace ▁it ▁with ▁a ▁dark er ▁eleg y ▁in ▁memory ▁of ▁the ▁E aster ▁R ising ▁and ▁its ▁after math . ▁ ▁After ▁the ▁sym phony ▁had ▁been ▁premier ed ▁in ▁December ▁ 1 9 2 2 , ▁the ▁E - flat ▁Son ata ▁was ▁forgotten ▁and ▁in access ible ▁until ▁C ohen ▁don ated ▁B ax ' s ▁manuscript s ▁to ▁the ▁British ▁Library ▁following ▁his ▁death . ▁However , ▁once ▁the ▁work ▁was ▁micro fil med ▁and ▁made ▁available ▁for ▁study , ▁interest ▁began ▁to ▁grow ▁in ▁hearing ▁it ▁performed . ▁P ian ist ▁and ▁composer ▁Patrick ▁P igg ott ▁copied ▁out ▁the ▁central ▁movement ▁as ▁a ▁separate ▁work , ▁and ▁pian ist ▁John ▁Sim ons ▁was ▁co ax ed ▁out ▁of ▁ret irement ▁to ▁make ▁a ▁recording ▁of ▁the ▁complete ▁son ata , ▁which ▁was ▁issued ▁on ▁c ass ette ▁in ▁ 1 9 8 2 . ▁P ian ist ▁No emy ▁Bel ink aya ▁gave ▁the ▁first ▁public ▁performance ▁of ▁the ▁son ata ▁for ▁the ▁B ax ▁cent en ary ▁in