man ▁( 1 8 9 7 – 1 9 8 6 ): ▁N ine ▁( one ▁lost , ▁replaced ▁by ▁Tri pty ch ) ▁for ▁most ▁of ▁that , ▁F an fare ▁review ▁of ▁a ▁recording ▁for ▁the ▁rest ). ▁Hann s ▁E is ler ▁( 1 8 9 8 – 1 9 6 2 ): ▁One ▁string ▁quart et , ▁ 1 9 3 7 . ▁George ▁G ers h win ▁( 1 8 9 8 – 1 9 3 7 ): ▁One ▁piece ▁for ▁string ▁quart et , ▁a ▁L ull aby , ▁ 1 9 1 9 ▁or ▁ 1 9 2 0 . ▁Vik tor ▁U ll mann ▁( 1 8 9 8 – 1 9 4 4 ): ▁Three ▁string ▁quart ets ▁of ▁which ▁two ▁are ▁lost . ▁P avel ▁Ha as ▁( 1 8 9 9 – 1 9 4 4 ): ▁Three ▁string ▁quart ets ▁from ▁ 1 9 2 0 ▁to ▁ 1 9 3 8 . ▁Hans ▁Kr ása ▁( 1 8 9 9 – 1 9 4 4 ): ▁One ▁quart et ▁( 1 9 2 1 ). ▁J ón ▁Le ifs ▁( 1 8 9 9 – 1 9 6 8 ): ▁I cel and ic ▁composer , ▁ 3 ▁string ▁quart ets : ▁No . ▁ 1 ▁' M ors ▁et ▁vita ', ▁Op . ▁ 2 1 , ▁( 1 9 3 9 ); ▁No . ▁ 2 ▁' V ita ▁et ▁m ors ', ▁Op . ▁ 3 6