. ▁In ▁ 1 9 6 6 , ▁they ▁sent ▁a ▁ma iling ▁of ▁ 5 , 0 0 0 ▁inv itations ▁nation wide , ▁calling ▁for ▁pieces ▁in ▁the ▁form ▁of ▁original ▁scores . ▁Compos er / Per former ▁Edition ▁published ▁some ▁of ▁these ▁music ▁scores ▁separately , ▁but ▁the ▁team ▁felt ▁the ▁need ▁to ▁collect ▁the ▁material ▁they ▁received ▁in ▁the ▁form ▁of ▁a ▁magazine ▁titled ▁Source . ▁Austin , ▁L un etta , ▁M iz elle , ▁Johnson , ▁Wood bur ry ▁and ▁administrative ▁manager ▁Paul ▁Roberts ▁formed ▁the ▁magazine ' s ▁board , ▁with ▁Austin ▁becoming ▁chief ▁editor . ▁ ▁A ▁tw elf th ▁issue ▁was ▁planned ▁but ▁never ▁made ▁it ▁to ▁printing ▁due ▁to ▁lack ▁of ▁internal ▁fund ing . ▁▁ ▁Cir cul ation ▁ ▁Each ▁issue ▁had ▁a ▁print ▁run ▁of ▁ 2 , 0 0 0 ▁copies , ▁although ▁the ▁first ▁issue ▁originally ▁ran ▁ 1 , 0 0 0 ▁copies ▁before ▁s elling ▁out ▁and ▁war rant ing ▁an ▁additional ▁ 1 , 0 0 0 ▁copies . ▁According ▁to ▁chief ▁editor ▁Larry ▁Austin , ▁the ▁spir al - bound , ▁ 1 0 ▁ ¾ ▁x ▁ 1 3 ▁ ½ ▁inches ▁landscape ▁format ▁was ▁inspired ▁by ▁some ▁of ▁John ▁C age ' s ▁graph ic ▁scores ▁as ▁well ▁as ▁the ▁benefit ▁of ▁being ▁able ▁to ▁stand ▁the ▁magazine ▁up ▁on ▁a ▁piano ▁or ▁music ▁stand ▁when ▁performing ▁pieces . ▁Sub scri bers ▁were ▁compos ers , ▁teachers , ▁perform ers ▁or ▁libraries ▁located