) ▁ ▁har p ▁ ▁cel esta ▁ ▁timp ani ▁D ut ille ux ▁has ▁omitted ▁viol ins ▁and ▁viol as ▁from ▁his ▁instrument ation . ▁Their ▁absence ▁was ▁meant ▁to ▁translate ▁the ▁impression ▁of ▁relative ▁em pt iness ▁and ▁imm ob ility ▁convey ed ▁by ▁the ▁lower ▁half ▁of ▁the ▁painting . ▁On ▁the ▁other ▁hand , ▁the ▁wind ▁instruments ▁and ▁per cuss ions ▁are ▁particularly ▁prominent . ▁Their ▁sol os ▁represent ▁the ▁movements ▁of ▁the ▁clouds ▁and ▁the ▁light ▁of ▁the ▁stars ▁and ▁the ▁moon . ▁Space ▁is ▁represented ▁by ▁an ▁unusual ▁distribution ▁of ▁the ▁c elli . ▁They ▁are ▁placed ▁at ▁the ▁for eground ▁in ▁a ▁half ▁circle ▁around ▁the ▁conduct or . ▁The ▁movement ▁is ▁symbol ized ▁by ▁the ▁altern ation ▁of ▁static ▁episodes ▁and ▁wh ir ling ▁sol os . ▁ ▁M st is lav ▁Rost rop ov ich ▁commission ed ▁the ▁work , ▁and ▁conducted ▁the ▁premi ere ▁with ▁Washington ▁National ▁Sym phony ▁Orchestra ▁on ▁ 7 ▁November ▁ 1 9 7 8 . ▁ ▁D ut ille ux ▁re vised ▁the ▁work ▁in ▁ 1 9 9 0 ▁with ▁the ▁addition ▁of ▁an ▁inter l ude ▁for ▁ 1 2 ▁cell os ▁between ▁the ▁two ▁original ▁movements . ▁ ▁The ▁work ▁is ▁approximately ▁ 2 0 ▁minutes ' ▁duration . ▁ ▁References ▁ ▁External ▁links ▁ ▁Boston ▁Sym phony ▁Orchestra , ▁programme ▁note ▁for ▁ 2 5 - 2 7 ▁February ▁ 2 0 1 6 ▁concert ▁ ▁S ources ▁ ▁Henri ▁D ut ille ux