ane . ▁In ▁some ▁of ▁the ▁alternate ▁takes , ▁C ed ar ▁Wal ton ▁is ▁at ▁the ▁piano , ▁decl ining ▁to ▁take ▁a ▁solo ▁and ▁also ▁playing ▁at ▁a ▁slower ▁tempo ▁than ▁the ▁takes ▁with ▁Fl an agan . ▁ ▁John ▁Col tr ane ▁named ▁" Gi ant ▁Ste ps " ▁after ▁its ▁bass ▁line . ▁He ▁stated ▁that ▁" the ▁bass ▁line ▁is ▁kind ▁of ▁a ▁l op ing ▁one . ▁It ▁goes ▁from ▁minor ▁third s ▁to ▁fourth s , ▁kind ▁of ▁a ▁l op - s ided ▁pattern ▁in ▁contrast ▁to ▁moving ▁strictly ▁in ▁fourth s ▁or ▁in ▁half - steps ." ▁It ▁took ▁two ▁recording ▁sessions ▁two ▁months ▁apart ▁before ▁John ▁Col tr ane ▁was ▁willing ▁to ▁release ▁his ▁original ▁rend ition ▁of ▁" Gi ant ▁Ste ps " ▁to ▁the ▁public . ▁An ▁analysis ▁of ▁Col tr ane ' s ▁solo ▁reve als ▁that ▁he ▁worked ▁out ▁mel od ic ▁patterns ▁over ▁the ▁changes ▁in ▁advance , ▁which ▁he ▁deployed ▁during ▁his ▁recorded ▁impro vis ation . ▁ ▁Musical ▁characteristics ▁ ▁From ▁beginning ▁to ▁end , ▁" Gi ant ▁Ste ps " ▁follows ▁altern ating ▁mod ulations ▁of ▁major ▁third ▁and ▁augment ed ▁fifth ▁intervals . ▁Its ▁structure ▁primarily ▁contains ▁ ▁– ▁ ▁– ▁ ▁harm onic ▁progress ions ▁( o ften ▁with ▁ch ord ▁substitution s ) ▁circul ating ▁in ▁third s . ▁The ▁ch ords ▁and ▁patterns ▁in ▁" Gi ant ▁Ste ps " ▁reflect ▁those ▁found ▁in ▁Col tr ane ' s ▁compos itions