▁used ▁for ▁lead - in ▁acc ents , ▁and ▁the ▁bass ▁drum ▁was ▁mainly ▁used ▁for ▁occas ional ▁" b omb s ." ▁ ▁But ▁the ▁importance ▁of ▁the ▁lead - in ▁as ▁a ▁rh yth mic ▁device ▁was ▁still ▁respect ed . ▁ ▁Dr um mer ▁Max ▁Ro ach ▁emphas ized ▁the ▁importance ▁of ▁the ▁lead - in , ▁aud ible ▁or ▁not , ▁in ▁" prote ct ing ▁the ▁beat ." ▁ ▁B eb op ▁solo ists ▁rose ▁to ▁the ▁challenge ▁of ▁keeping ▁a ▁swing ing ▁feel ▁in ▁highly ▁s oph istic ated ▁music ▁often ▁played ▁at ▁a ▁break ne ck ▁pace . ▁ ▁The ▁ground break ers ▁of ▁be b op ▁had ▁come ▁of ▁age ▁as ▁mus icians ▁with ▁swing ▁and , ▁while ▁breaking ▁the ▁bar riers ▁of ▁the ▁swing ▁era , ▁still ▁reflected ▁their ▁swing ▁her itage . ▁ ▁Vari ous ▁rh yth mic ▁swing ▁approxim ations : ▁ ≈ 1 : 1 ▁= ▁e ighth ▁note ▁+ ▁e ighth ▁note , ▁" stra ight ▁e ighth s ." ▁▁ ≈ 3 : 2 ▁= ▁long ▁e ighth ▁+ ▁short ▁e ighth . ▁▁ ≈ 2 : 1 ▁= ▁triple t ▁quarter ▁note ▁+ ▁triple t ▁e ighth , ▁triple ▁meter ; ▁▁ ≈ 3 : 1 ▁= ▁d otted ▁e ighth ▁note ▁+ ▁six teenth ▁note . ▁▁ ▁{ | ▁class =" wik itable " ▁| ▁ ▁| ▁ ▁| ▁ ▁| ▁ ▁| } ▁ ▁The ▁subt ler ▁end ▁of ▁the ▁range ▁involves ▁tre ating ▁written ▁pairs