Guitar/Keyboard/Synth Hybrid

Had a weird dream last night about playing a guitar/keyboard combination.
Sorta like a two neck guitar but one of the necks is an actual keyboard while the guitar part above it is a guitar/synth combo.
Has anybody ever heard of anything like that.. like a decent company who's made one?

I'm just thinking it'd be really kewl to be able to play guitar live, and then switch to keyboards like Thomas Dolby for a few minutes to play strings or drums or whatever, then switch back to guitar, then switch to guitar synth....

It'd also be nice in the studio not being strapped down to the computer desk to work on keyboard parts all the time.

I can't remember the name of it, but I think the solo parts in "Frankenstien" by The Edgar Winter Group were played on something like that. That was more than 30 years ago, so if such a thing is still being made, the technology is probably radically different now.

Man... Frankenstein.
Haven't heard that tune in ages. da dat, dow, da, dat dat, dow'dn dat, da dat, dow'dn dat.... doodendoodendoodendooda....

I know he used some of the first keyboards that had pegs suitable for strapping around the neck... like the Korg Poly800 (got one.. woohoo).
That was back when synths used to be giant things with knobs and suddenly Korg came out with this amazing synth that was like 10lbs and could run on batteries with touch controls.
I never remember seeing a hybrid guitar with a keyboard attached though.

I'm thinkin... guitar/guitar synth on top, then a keyboard below it.
All midi'd up with touch controls (like the Roland GR808 guitar, but more modern and with way better tracking)
Wireless... wireless headphones...