▁fact ▁that ▁all ▁four ▁of ▁its ▁instruments , ▁made ▁by ▁Antonio ▁Str ad ivari ▁( 1 6 4 4 – 1 7 3 7 ), ▁had ▁once ▁been ▁owned ▁by ▁the ▁Italian ▁virt u oso ▁viol in ist ▁and ▁composer ▁Nic col ò ▁P agan ini ▁( 1 7 8 2 – 1 8 4 0 ). ▁ ▁The ▁other ▁original ▁members ▁were ▁Gust ave ▁Ros se els , ▁second ▁viol in ; ▁Robert ▁Cour te , ▁vi ola ; ▁and ▁Robert ▁Ma as , ▁c ello . ▁ ▁Sub sequ ent ▁members ▁included ▁Charles ▁Lib ove , ▁Stefan ▁K ray k ▁and ▁Harris ▁Gold man , ▁viol in ; ▁Charles ▁F oid art , ▁David ▁Schw art z ▁and ▁Albert ▁Gill is , ▁vi ola ; ▁and ▁Ad ol phe ▁Fre zin ▁and ▁Luci en ▁Lap orte , ▁c ello . ▁ ▁The ▁quart et ▁made ▁its ▁world ▁debut ▁at ▁the ▁University ▁of ▁California ▁at ▁Ber keley . ▁Crit ic ▁Alfred ▁Fran ken stein ▁wrote ▁in ▁the ▁San ▁Francisco ▁Chron icle ▁on ▁November ▁ 1 1 , ▁ 1 9 4 6 , ▁" Per haps ▁never ▁before ▁has ▁one ▁heard ▁a ▁string ▁quart et ▁with ▁so ▁rich , ▁m ellow ▁and ▁super b ly ▁pol ished ▁a ▁tone ." ▁ ▁On ▁December ▁ 5 , ▁ 1 9 4 7 , ▁the ▁Los ▁Angeles ▁Ex am iner ▁reported , ▁" En tr usted ▁with ▁fab ul ously ▁sensitive ▁string ▁instruments ▁that ▁once ▁were ▁in ▁the ▁personal ▁collection ▁of ▁P agan ini