▁chamber ▁music , ▁a ▁mission ▁she ▁continued ▁to ▁carry ▁out ▁until ▁her ▁death ▁at ▁the ▁age ▁of ▁ 8 9 ▁in ▁Cambridge , ▁Massachusetts . ▁Due ▁to ▁her ▁husband ' s ▁profession , ▁she ▁also ▁gave ▁financial ▁support ▁to ▁medical ▁institutions . ▁ ▁C ool idge ' s ▁financial ▁resources ▁were ▁not ▁un limited ▁but ▁through ▁force ▁of ▁person ality ▁and ▁conv iction ▁she ▁managed ▁to ▁raise ▁the ▁status ▁of ▁chamber ▁music ▁in ▁the ▁United ▁States , ▁where ▁the ▁major ▁interest ▁of ▁compos ers ▁had ▁previously ▁been ▁in ▁orch est ral ▁music , ▁from ▁curiosity ▁to ▁a ▁sem inal ▁field ▁of ▁composition . ▁Her ▁dev otion ▁to ▁music ▁and ▁gener os ity ▁to ▁mus icians ▁were ▁sp ur red ▁by ▁her ▁own ▁experience ▁as ▁a ▁performing ▁music ian : ▁she ▁appeared ▁as ▁a ▁pian ist ▁up ▁to ▁her ▁ 8 0 s , ▁accomp any ing ▁world - ren owned ▁instrument al ists . ▁ ▁C ool idge ▁established ▁the ▁Ber k shire ▁String ▁Quart et ▁in ▁ 1 9 1 6 ▁and ▁started ▁the ▁Ber k shire ▁Music ▁Festival ▁at ▁South ▁Mountain , ▁Pitts field , ▁Massachusetts , ▁two ▁years ▁later . ▁Out ▁of ▁this ▁grew ▁the ▁Ber k shire ▁Sym ph onic ▁Festival ▁at ▁T angle wood , ▁which ▁she ▁also ▁supported . ▁She ▁was ▁elected ▁a ▁Fellow ▁of ▁the ▁American ▁Academy ▁of ▁Arts ▁and ▁Sciences ▁in ▁ 1 9 5 1 . ▁ ▁Elizabeth ' s ▁only ▁son , ▁Albert , ▁graduated ▁from ▁the ▁Harvard ▁University ▁and ▁was ▁a ▁chemical