, ▁with ▁additional ▁musical ▁ideas ▁contributed ▁by ▁D erek ▁Sh ul man ▁( who ▁was ▁also ▁known ▁to ▁contribute ▁entire ▁songs ). ▁L yr ics ▁were ▁mostly ▁written ▁by ▁Phil ▁Sh ul man ▁and ▁D erek ▁Sh ul man ▁( K er ry ▁Min near ▁wrote ▁some ▁lyr ics ) ▁up ▁until ▁Phil ' s ▁departure ▁following ▁the ▁release ▁of ▁Oct opus ▁( 1 9 7 2 ) ▁– ▁subsequent ▁lyr ics ▁were ▁mostly ▁written ▁by ▁D erek ▁Sh ul man , ▁with ▁help ▁from ▁Ker ry ▁Min near . ▁By ▁the ▁standards ▁of ▁progress ive ▁rock , ▁Gent le ▁Gi ant ' s ▁music ▁is ▁generally ▁considered ▁to ▁be ▁particularly ▁complex ▁and ▁demand ing . ▁It ▁shares ▁several ▁aspects ▁with ▁that ▁of ▁other ▁progress ive ▁rock ▁bands , ▁including : ▁▁ ▁multi - part ▁vocal ▁harm on ies ▁ ▁complex ▁lyr ics ▁ ▁organisation ▁into ▁concept ▁album ▁form ▁( on ▁occasion ) ▁ ▁frequent ▁changes ▁in ▁tempo ▁ ▁frequent ▁use ▁of ▁sync op ation ▁and ▁non - standard ▁time ▁sign atures , ▁including ▁polym eters ▁( two ▁or ▁more ▁time ▁sign atures ▁played ▁simultaneously ) ▁ ▁use ▁of ▁complex ▁mel od ies , ▁frequently ▁contrast ing ▁harm on ies ▁with ▁dis son ance ▁ ▁extensive ▁use ▁of ▁instrument al ▁and ▁vocal ▁counter point ▁ ▁use ▁of ▁musical ▁structures ▁typically ▁associated ▁with ▁classical ▁music ▁( for ▁example , ▁m adr ig al ▁form ▁on ▁" K not s ", ▁fug al ▁ex position ▁in ▁" On ▁Ref lection ", ▁occas ional ▁Early ▁Music