MATRIXSYNTH: Korg Poly-61, with extensive modifications and MIDI
MATRIXSYNTH: Korg Poly-61 with Custom Wood Case & MIDI Retrofit
Korg Poly 61M 61Key Synth Vintage Analog Keyboard w/MIDI AS IS | eBay
Richard-EMIRepair on Twitter: "Tubbutec midi kit installed in this 1982 vintage Korg Poly-61 so now it's a Poly-61M #EMIRepair #Analogue #Synthesizer #Korg #Poly61 #Poly61M https://t.co/HeSblNmJON" / Twitter
Poly-61 - Korg Poly-61 - Audiofanzine
Korg Poly 61M (Midi) early 80s / Poly 61-M / Poly-61 M | Reverb UK