b ales . ▁This ▁is ▁particularly ▁popular ▁for ▁playing ▁latin ▁rh yth ms . ▁ ▁By ▁p ig gy back ing ▁on ▁a ▁larger ▁c ym bal . ▁The ▁two ▁c ym b als ▁must ▁be ▁separated ▁by ▁an ▁extra ▁felt ▁if ▁they ▁are ▁not ▁to ▁each ▁affect ▁the ▁other ' s ▁tone ▁and ▁risk ▁damage . ▁ ▁By ▁use ▁of ▁a ▁double ▁stand ▁that ▁mount s ▁the ▁top ▁c ym bal ▁on ▁an ▁extension ▁of ▁the ▁stand ▁that ▁rep laces ▁the ▁wing ▁nut ▁holding ▁the ▁bottom ▁c ym bal . ▁These ▁are ▁commer cially ▁available ▁but ▁more ▁often ▁created ▁by ▁adding ▁an ▁access ory ▁to ▁a ▁single ▁stand . ▁ ▁As ▁the ▁upper ▁c ym bal ▁in ▁a ▁stack ▁in ▁which ▁another ▁c ym bal ▁is ▁deliber ately ▁in ▁contact ▁with ▁the ▁spl ash . ▁ ▁Several ▁of ▁these ▁techniques , ▁not ably ▁stack ing ▁and ▁p ig gy back ing , ▁are ▁very ▁rarely ▁used ▁for ▁c ym b als ▁other ▁than ▁spl ash ▁c ym b als . ▁The ▁rim - mount ed ▁bo om ▁is ▁restricted ▁to ▁spl ash ▁c ym b als ▁ow ing ▁to ▁the ▁weight ▁of ▁other ▁c ym bal ▁types , ▁but ▁similar ▁mount s , ▁tradition ally ▁on ▁the ▁top ▁of ▁the ▁rear ▁rim ▁of ▁the ▁bass ▁drum ▁but ▁also ▁on ▁other ▁drums , ▁are ▁occasionally ▁used ▁for ▁other ▁light weight ▁acc ent ▁effects , ▁particularly ▁a ▁cow bell ▁and / or ▁a ▁wood ▁block . ▁ ▁Stack ing ▁ ▁A ▁c ym bal