Conversation so far:
What is the fingerboard controller?
A fingerboard controller is a device that can control a synthesizer.
Who used synthesizers?
Synthesizers were first used in pop music in the 1960s.
Did any other artists use the synthesizer besides the pop music in the 1960s?
EMS synthesizers were used by European art rock and progressive rock acts including Brian Eno and Pink Floyd.
Is the synthesizer still used today?
Today, the synthesizer is used in every genre of music.

Question: Are there any other interesting aspects of this article?
Self-contained rewrite: Are there any other interesting aspects of synthesizers?