The ARP Odyssey is an analog synthesizer introduced in 1972. Responding to pressure from Moog Music to create a portable, affordable (the Minimoog was US$1,495 upon release) "performance" synthesizer, ARP scaled down its popular 2600 synthesizer and created the Odyssey, which became the best-selling synthesizer they made.The Odyssey is a two-oscillator analog synthesizer, and one of the first with duophonic capabilities (the ability to play two notes at the same time).