▁Hin dem ith ▁and ▁Kurt ▁We ill . ▁ ▁Among ▁his ▁other ▁works ▁are ▁eight ▁oper as , ▁including ▁Eine ▁flor entin ische ▁T rag öd ie ▁( 1 9 1 5 – 1 6 ) ▁and ▁the ▁semi - aut obi ographical ▁Der ▁Z wer g ▁( The ▁D war f , ▁ 1 9 1 9 – 2 1 ), ▁both ▁based ▁on ▁works ▁by ▁Oscar ▁Wil de ; ▁chamber ▁music , ▁including ▁four ▁string ▁quart ets ; ▁and ▁the ▁bal let ▁Der ▁Tri umph ▁der ▁Zeit ▁( 1 9 0 1 ). ▁He ▁also ▁composed ▁three ▁ps alm ▁settings ▁for ▁ch orus ▁and ▁or chestra ▁and ▁numerous ▁song ▁cycles , ▁both ▁with ▁piano ▁and ▁with ▁or chestra , ▁of ▁which ▁the ▁Se chs ▁Ges änge , ▁Op . ▁ 1 3 , ▁to ▁texts ▁by ▁Maurice ▁Ma eter lin ck ▁is ▁the ▁best - known . ▁ ▁While ▁the ▁influence ▁of ▁Bra h ms ▁is ▁ev oked ▁in ▁Z em lin sky ' s ▁early ▁works ▁( prom pt ing ▁encourag ement ▁from ▁Bra h ms ▁himself ), ▁an ▁original ▁voice ▁is ▁present ▁from ▁the ▁first ▁works ▁on , ▁handling ▁dis son ances ▁in ▁a ▁much ▁fre er ▁manner ▁than ▁Bra h ms . ▁Later ▁works ▁adopt ▁the ▁kind ▁of ▁extended ▁harm on ies ▁that ▁Wagner ▁had ▁introduced ▁and ▁also ▁reflect ▁the ▁influence ▁of ▁Mah ler . ▁In ▁contrast ▁to ▁his ▁friend ▁Sch o enberg , ▁he ▁never ▁wrote ▁at onal ▁music , ▁and ▁never ▁used ▁the ▁twelve - t