1 9 5 4 ▁until ▁its ▁dis band ment ▁in ▁ 1 9 7 2 . ▁She ▁participated ▁in ▁all ▁of ▁the ▁Gut ai ▁group ' s ▁exhib itions , ▁including ▁its ▁first , ▁The ▁Ex perimental ▁Out door ▁Ex hib ition ▁of ▁Modern ▁Art ▁to ▁Challenge ▁the ▁Mid sum mer ▁Sun ▁( 1 9 5 5 ), ▁held ▁in ▁Ash i ya ▁Park ; ▁and ▁later ▁exhib itions ▁at ▁Mar tha ▁Jackson ▁Gallery , ▁New ▁York ▁( 1 9 5 8 ); ▁the ▁St ed elijk ▁Museum , ▁Amsterdam ▁( 1 9 6 5 ); ▁and ▁the ▁ 4 5 th ▁and ▁ 5 3 rd ▁Ven ice ▁B ienn ale ▁( 2 0 0 9 ). ▁Her ▁first ▁solo ▁exhibition ▁was ▁held ▁at ▁the ▁Gut ai ▁Pin ac othe ca , ▁the ▁Gut ai ▁group ' s ▁museum , ▁in ▁ 1 9 6 3 . ▁Other ▁solo ▁exhib itions ▁included ▁shows ▁at ▁Ash i ya ▁City ▁Museum ▁of ▁Art ▁and ▁History ▁( 2 0 0 4 ); ▁Galerie ▁Al mine ▁Re ch ▁in ▁Paris ▁( 2 0 1 0 ); ▁and ▁at ▁Take ▁Nin ag awa ▁in ▁Tokyo ▁( 2 0 1 3 ▁and ▁ 2 0 1 5 ). ▁ ▁Yam az aki ▁was ▁known ▁for ▁a ▁colour ful ▁abstract ▁style , ▁for ▁her ▁interest ▁in ▁non - trad itional ▁materials ▁( including ▁tin , ▁mirror s , ▁and ▁vin yl ) ▁and ▁for ▁her ▁" inv estig ations ▁into ▁chemical ▁and ▁physical ▁transformation ". ▁For ▁the ▁Gut ai