iness ▁and ▁terror ▁that ▁comes ▁to ▁one ▁when ▁love ▁becomes ▁unh appy ". ▁All ▁of ▁the ▁six ▁movements ▁of ▁this ▁work ▁are ▁un t itled . ▁ 3 8 ▁years ▁after ▁its ▁composition , ▁his ▁long time ▁friend ▁artist ▁Jas per ▁Joh ns ▁included ▁a ▁sil ks creen ▁of ▁the ▁score ▁in ▁a ▁large ▁mixed - media ▁di pty ch ▁which ▁itself ▁is ▁also ▁titled ▁“ Per il ous ▁Night .” ▁ ▁Myst er ious ▁Advent ure ▁Com posed ▁in ▁ 1 9 4 5 ▁for ▁a ▁dance ▁by ▁Mer ce ▁C unning ham . ▁This ▁is ▁another ▁large - scale ▁work ▁with ▁moder ately ▁complex ▁piano ▁prepar ation , ▁involving ▁ 2 7 ▁notes . ▁It ▁contains ▁five ▁sections . ▁ ▁D augh ters ▁of ▁the ▁L ones ome ▁Is le ▁Com posed ▁in ▁ 1 9 4 5 ▁for ▁a ▁dance ▁by ▁Jean ▁Erd man . ▁Cont ains ▁nin ete en ▁sections . ▁Th irty - n ine ▁notes ▁are ▁prepared . ▁ ▁Music ▁for ▁Marcel ▁Duch amp ▁ ▁Com posed ▁in ▁ 1 9 4 7 ▁for ▁a ▁segment ▁of ▁Hans ▁Rich ter ' s ▁sur real ist ▁film ▁Dream s ▁That ▁M oney ▁Can ▁Bu y . ▁The ▁film ▁contains ▁several ▁segments ▁designed ▁by ▁different ▁artists , ▁and ▁C age ' s ▁music ▁was ▁composed ▁for ▁a ▁segment ▁designed ▁by ▁Marcel ▁Duch amp . ▁The ▁segment — a ▁dream ▁one ▁of ▁the ▁characters ▁is ▁having — is ▁titled ▁" Dis cs " ▁and ▁consists ▁mostly ▁of ▁Duch amp '