es izer ▁engine ▁with ▁the ▁sequ encer ▁capabilities ▁of ▁the ▁Roland ▁M RC - Pro ▁sequ encer . ▁ ▁The ▁XP - 8 0 ▁was ▁introduced ▁in ▁ 1 9 9 6 ▁ ▁and ▁is ▁now ▁dis cont in ued . ▁ ▁Spec ifications ▁▁▁ ▁The ▁XP - 8 0 ▁has ▁a ▁ 7 6 - key ▁semi - weight ed ▁keyboard . ▁ ▁A ▁smaller ▁ 6 1 - key ▁variant , ▁the ▁XP - 6 0 ▁was ▁introduced ▁shortly ▁after ward . ▁The ▁synth esis ▁engine ▁is ▁capable ▁of ▁ 6 4 - voice ▁poly phony ▁and ▁ 1 6 - part ▁multi - tim br ality . ▁ ▁The ▁XP - 8 0 ▁includes ▁the ▁ 1 2 8 ▁General ▁M ID I ▁instrument ▁set , ▁as ▁well ▁as ▁ 3 8 4 ▁additional ▁pres et ▁instruments ▁(" patch es " ▁in ▁Roland ▁parl ance ), ▁for ▁a ▁total ▁of ▁ 5 1 2 ▁pres et ▁patch es . ▁Add itional ▁user ▁memory ▁is ▁provided ▁for ▁making ▁copies ▁of ▁up ▁to ▁ 1 2 8 ▁patch es , ▁allowing ▁the ▁user ▁to ▁edit ▁patch ▁parameters ▁and ▁save ▁them ▁in ▁memory . ▁ ▁There ▁are ▁ 8 ▁pres et ▁per cussion ▁instrument ▁combinations ▁( called ▁" rh ythm ▁sets ") ▁and ▁ 2 ▁user ▁configur able ▁rh ythm ▁sets . ▁ ▁The ▁XP - 8 0 ▁includes ▁ 6 4 ▁pres et ▁combinations ▁of ▁up ▁to ▁ 1 5 ▁existing ▁patch es ▁and ▁ 1 ▁rh ythm ▁set . ▁ ▁These