#3 on the list is the Korg ARP Odyssey keyboard.
Originally produced in 1972, the ARP Odyssey was updated with several improvements throughout its history and was manufactured until 1981, when it, along with most analog synths, were killed off by the rise of cheap polyphonic digital keyboards.
The new Korg Odyssey has a compact body, improved sliders, and a 37-note slim keyboard. In addition, a new ‘DRIVE’ switch is provided and connectors, including MIDI and headphone output as well as Patch cables, have been added.
According to the company, “Korg has brought back the ARP Odyssey for today, while preserving the basic design of the original”.