When Durand-Durand captures Barbarella, he places her in a device which he calls the Excessive Machine. She sits in a reclining seat, covered up to the shoulders by the device. Her head rests on an elaborate red leather headboard. Durand-Durand stands at a keyboard, built into the “footboard” of the machine, facing her.
The keyboard resembles that of an organ, but with transparent vertical keys beneath which a few colored light pulse. Long silver tubes stretch from the sides of the device to the ceiling. Touching the keys (they do not appear to depress) produces the sound of a full orchestra and causes motorized strips of metal to undulate in a sine wave above the victim.
When Durand-Durand reads the strange sheet music and begins to play “Sonata for Executioner and Various Young Women,” the machine (via means hidden from view) removes Barbarella’s clothing piece by piece, ejecting them through a tube in the side of the machine near the floor. Then in an exchange Durand-Durand reveals its purpose…
Barbarella: It’s sort of nice, isn’t it?
Durand-Durand: Yes. It is nice. In the beginning. Wait until the tune changes. It may change your tune as well.
Barbarella: Goodness, what do you mean?
Durand-Durand: When we reach the crescendo, you will die of pleasure. Your end will be swift, but sweet, very sweet.
As Durand-Durand intensifies his playing, Barbarella writhes in agony/ecstasy. But despite his most furious playing, he does not kill Barbarella. Instead his machine fails dramatically, spewing fire and smoke out of the sides as its many tubes burn away. Barbarella is too much woman for the likes of his technology.
I’m going to disregard this as a device for torture and murder, since I wouldn’t want to improve such a thing, and that whole premise is kind of silly anyway. Instead I’ll regard it as a BDSM sexual device, in which Durand-Durand is a dominant, seeking to push the limits of an (informed, consensual) submissive using this machine. It’s possible that part of the scene is demonstration of prowess on a standardized, difficult-to-use instrument. If so, then a critique wouldn’t matter. But if not…Since the keys don’t move, the only variables he’s controlling are touch duration and vertical placement of his fingers. (The horizontal position on each key seems really unlikely.) I’d want to provide the player some haptic feedback to detect and correct slipping finger placement, letting him or her maintain attention on the sub who is, after all, the point.