les , ▁for ▁example , ▁play ▁the ▁same ▁fills ▁each ▁time ▁they ▁perform ▁a ▁song . ▁ ▁Com parison ▁with ▁similar ▁techniques ▁ ▁F ills ▁are ▁distinguished ▁from ▁solo ▁breaks , ▁which ▁are ▁short , ▁often ▁un ac comp an ied ▁solo ▁pass ages ▁interpol ated ▁between ▁sections ▁of ▁a ▁song . ▁Where as ▁fills ▁are ▁relatively ▁un ob tr us ive , ▁solo ▁breaks ▁such ▁as ▁bass ▁runs ▁are ▁usually ▁composed ▁to ▁draw ▁attention ▁to ▁the ▁solo ist ' s ▁virt u oso ▁skills ▁by ▁using ▁difficult ▁techniques ▁and ▁rapid ▁pass ages . ▁ ▁F ill ▁pass ages ▁are ▁also ▁distinguished ▁from ▁" le ad " ▁pass ages , ▁in ▁which ▁a ▁musical ▁instrument ▁becomes ▁a ▁mel od ic ▁substitute ▁for ▁the ▁singer ▁for ▁a ▁substantial ▁period , ▁and ▁from ▁sol os ▁such ▁as ▁guitar ▁sol os . ▁ ▁S ources ▁ ▁Category : D rum ming ▁Category : Ac comp an iment ▁Category : Mus ical ▁techniques ▁Category : R h ythm ▁and ▁meter ▁Category : R iffs <0x0A> </s> ▁" Gre ater ▁Maur it ania " ▁is ▁a ▁term ▁for ▁the ▁Maur itan ian ▁ir red ent ist ▁claim ▁to ▁Western ▁Sah ara , ▁and ▁possibly ▁other ▁Mo or ish ▁or ▁Sah raw i - pop ulated ▁areas ▁of ▁the ▁western ▁Sah ara ▁desert . ▁ ▁Its ▁main ▁compet ing ▁ide ologies ▁have ▁been ▁Ber ber ism , ▁Sah raw i ▁national ism , ▁Mor oc can ▁ir red ent ism , ▁Tu are g ▁national ism ▁and ▁Pan -