In this video, Frankie Bellani demonstrates using the Analogue Systems French Connection to control a Dotcom System 110 modular synthesizer.
The French Connection is a control voltage keyboard controller that was inspired by the Ondes Martenot. It features a ring controller that allows for continuous pitch control.
The French Connection doesn’t make sounds on its own, but is used to control analog synths that support CV control.
Details on the French Connection are available at the Analogue Solutions site.