While the French horn is primarily used in classical music pieces, in the mid-20th century it broke into the jazz world. Julius Watkins was virtually the father of the jazz French horn.
The French horn has the widest tonal range of all brass instruments. Its extremely rich, soft timbre gives it a special quality somewhere between brass and woodwinds, enabling it to blend well with the sound of many other instruments. It is also one of the more expressive instruments, thanks to the player’s ability to alter the tone and fine-tune the pitch by putting a hand in the bell.
First there were electronic “instruments” like drun samplers mimicking real sounds. The way these devices worked created new genres. Now bands like Meute recreate those sounds with real instruments.