▁there ▁are ▁three ▁analog ue ▁ 0 - 1 0 V ▁Control ▁Vol t age ▁( CV ) ▁inputs ▁for ▁pitch , ▁filter ▁cut off ▁and ▁sw arm . ▁With ▁the ▁use ▁of ▁a ▁standard ▁M ID I ▁to ▁CV ▁converter , ▁the ▁instrument ▁may ▁be ▁controlled ▁from ▁a ▁sequ encer ▁or ▁other ▁M ID I ▁controller . ▁ ▁D ew an at ron ▁ ▁The ▁Sw arm at ron ▁was ▁developed ▁by ▁D ew an at ron , ▁the ▁D ew an ▁c ous ins , ▁Brian ▁and ▁Leon . ▁They ▁are ▁still ▁hand - made ▁by ▁the ▁D ew ans , ▁explaining ▁their ▁high ▁price - tag . ▁Pre vious ▁instruments ▁such ▁as ▁their ▁Mel ody ▁G ins ▁and ▁D ual ▁Pr imate ▁Console ▁have ▁also ▁used ▁the ▁same ▁principle ▁of ▁multiple , ▁interact ing ▁oscill ators . ▁These ▁instruments ▁also ▁show ▁the ▁Sw arm at ron ' s ▁retro ▁sty ling ▁of ▁dark ▁wood ▁cases ▁with ▁ham mer - fin ish ▁green ▁paint . ▁Kn obs ▁and ▁switch es ▁also ▁show ▁a ▁distinct ly ▁retro ▁influence . ▁Front ▁pan els ▁labels ▁are ▁deliber ately ▁minimal , ▁controls ▁being ▁label led ▁with ▁single ▁letters ▁rather ▁than ▁words . ▁ ▁D ew an at ron ▁sell ▁their ▁Sw arm at ron ▁through ▁Big ▁City ▁Music ▁of ▁Los ▁Angeles . ▁As ▁of ▁March ▁ 2 0 1 6 , ▁only ▁ 8 3 ▁have ▁been ▁produced . ▁ ▁Notable ▁appearances ▁ ▁Tr ent ▁Re zn or ▁and ▁Att icus ▁Ross ▁used ▁a ▁Sw