Do you mean software synths or other analogue synths ? Software wise the MODEL E VST PLUG IN . Analogue wise the REALISTIC ( MOOG ) MG-1 , ARP ODYSSEY with 24db/octave filter . Sometimes I can get MICROMOOG like sounds out of my ROLAND SH-101s . You cannot sync the MOOG to any source . MOOGs use the OCT/VOLT control voltage standard , which can be used with ARP , ROLAND , OBERHEIM , SC , and KORG MONOPOLY ( they switched to OCT/VOLT ) .