Beethoven may not have envisioned such a modern approach to his works so far into the future. Towards the end of his career, he may not been envisioning much at all, either.
But it's perhaps a new touch of modern technology that has catapulted a Beethoven classic into the 21st century. Thus, the weapon of choice for this latest reproduction: a Theremin.
The instrument is not a new piece of machinery--quite the opposite. The Theremin is a device of the '20s, named after its creator, Léon Theremin, and requires no physical touch. Instead, it is conducted with hand motions via electronic signals conducted through two metal antennae.
You may have heard it before, in the background of the Beach Boys' classic 'Good Vibrations'; movie soundtracks such as Spellbound and The Day the Earth Stood Still; and some avant-garde stuff of the late 20th century spilling over into now.