system-500 505 vcf
system-500 510 synth
system-500 512 dual vco
system-500 521 dual vcf
system-500 530 dual vca
system-500 531 mix
system-500 540 dual env/lfo
system-500 555 lag/s&h
system-500 572 phase shifter + delay + lfo
system-500 complete set
