It was a GX1 in the studio as well. Not only was it used for both the intro and 'baroque-style' solo, but also 'In the Evening', 'Carouselambra' and 'I'm Gonna Crawl'. Apparently, Stevie Wonder had used it on several songs, as well as Keith Emerson (whom apparently, JPJ sold it to as a spare later on). Its a precursor to the aforementioned CS80. If it wasn't for the time-consuming upkeep, he might still have it!