What about a Buchla, though I’m not sure how long they were in the market.
Crica 1976 I spent some time at the McGill electronjc music department. They had a Mellotron, and a Moog. But the professor in charge didn’t want a keyboard connected to the Moog, there was a ribbon controller. He was worried that instead of more experimental work, students would just use it to play popular.music.
At that time musicians were already touring with synthesizers, to get special effects. But they were still large, and analog, and probably only one note at a time. A bit later it changed, synthesizers that were better oriented for live performance and multiple tones rather than in the studio building up by note by note with a recorder.
Then digital came along, “synthesized” but the end user wasn’t adjusting filters or envelope generators. It’s all presets, press a button and get a given sound.
An analog synthesizer can be interesting. I never had one, but read a lot and played with homemade circuits that made up a synthesizer, taught me a lot about sound. But they are limited, and a buyer should know the limitations and value.
